book ii

., which was to have dealt with "the rights and duties of the members of the hierarchy," remain unwritten; the most notable omission is that of the ecclesiastical law in relation to the regular orders. Incomplete as it is, however, the _Kirchenrecht_ remains a work of the highest scientific authority. Epoch-making in its application of the modern historical method to the study of ecclesiastical law in its theory and practice, it has become the model for the younger school of canonists.

See the articles s.v. by E. Seckel in Herzog-Hauck, _Realencyklopadie_ (3rd ed., 1900), and by Ulrich Steitz in the _Allgemeine deutsche Biographie_, vol. 50 (Leipzig, 1905).

HINTERLAND (German for "the land behind"), the region lying behind a coast or river line, or a country dependent for trade or commerce on any other region. In the purely physical sense "interior" or "back country" is more commonly used, but the word has gained a distinct political significance. It first came into prominence during 1883-1885, when Germany insisted that she had a right to exercise jurisdiction in the territory behind those parts of the African coast that she had occupied. The "doctrine of the hinterland" was that the possessor of the littoral was entitled to as much of the back country as geographically, economically or politically was dependent upon the coast lands, a doctrine which, in the space of ten years, led to the partition of Africa between various European powers.

HINTON, JAMES (1822-1875), English surgeon and author, son of John Howard Hinton (1791-1873), Baptist minister and author of the _History and Topography of the United States_ and other works, was born at Reading in 1822. He was educated at his grandfather's school near Oxford, and at the Nonconformist school at Harpenden, and in 1838, on his father's removal to London, was apprenticed to a woollen-draper in Whitechapel. After retaining this situation about a year he became clerk in an insurance office. His evenings were spent in intense study, and this, joined to the ardour, amounting to morbidness, of his interest in moral problems, so affected his health that in his nineteenth year he resolved to seek refuge from his own thoughts by running away to sea. His intention having, however, been discovered, he was sent, on the advice of the physician who was consulted regarding his health, to St Bartholomew's Hospital to study for the medical profession. After receiving his diploma in 1847, he was for some time assistant surgeon at Newport, Essex, but the same year he went out to Sierra Leone to take medical charge of the free labourers on their voyage thence to Jamaica, where he stayed some time. He returned to England in 1850, and entered into partnership with a surgeon in London, where he soon had his interest awakened specially in aural surgery, and gave also much of his attention to physiology. He made his first appearance as an author in 1856 by contributing papers on physiological and ethical subjects to the _Christian Spectator_; and in 1859 he published _Man and his Dwelling-place_. A series of papers entitled "Physiological Riddles," in the _Cornhill Magazine_, afterwards published as _Life in Nature_ (1862), as well as another series entitled _Thoughts on Health_ (1871), proved his aptitude for popular scientific exposition. After being appointed aural surgeon to Guy's Hospital in 1863, he speedily acquired a reputation as the most skilful aural surgeon of his day, which was fully borne out by his works, _An Atlas of Diseases of the membrana tympani_ (1874), and _Questions of Aural Surgery_ (1874). But his health broke down, and in 1874 he gave up practice; and he died at the Azores of acute inflammation of the brain on the 16th of December 1875. In addition to the works already mentioned, he was the author of _The Mystery of Pain_ (1866) and _The Place of the Physician_ (1874). On account of their fresh and vigorous discussion of many of the important moral and social problems of the time, his writings had a wide circulation on both sides of the Atlantic.

His _Life and Letters_, edited by Ellice Hopkins, with an introduction by Sir W. W. Gull, appeared in 1878.

HIOGO [HYOGO], a town of Japan in the province of Settsu, Nippon, on the western shore of the bay of Osaka, adjoining the foreign settlement of Kobe, 21 m. W. of Osaka by rail. The growth of its prosperity has been very remarkable. Its population, including that of Kobe, was 135,639 in 1891, and 285,002 in 1903. From 1884 to the close of the century its trade increased nearly eightfold, and the increase was not confined to a few staples of commerce, but was spread over almost the whole trade, in which silk and cotton fabrics, floor-mats, straw-plaits, matches, and cotton yarns are specially important. Kobe owes much of its prosperity to the fact of serving largely as the shipping port of Osaka, the chief manufacturing town in Japan. The foreign community, exclusive of Chinese, exceeds 1000 persons. Kobe is considered the brightest and healthiest of all the places assigned as foreign settlements in Japan, its pure, dry air and granite subsoil constituting special advantages. It is in railway communication with all parts of the country, and wharves admit of steamers of large size loading and discharging cargo without the aid of lighters. The area originally appropriated for a foreign settlement soon proved too restricted, and foreigners received permission to lease lands and houses direct from Japanese owners beyond the treaty limits, a privilege which, together with that of building villas on the hills behind the town, ultimately involved some diplomatic complications. Kobe has a shipbuilding yard, and docks in its immediate neighbourhood.

Hiogo has several temples of interest, one of which has near it a huge bronze statue of Buddha, while by the Minatogawa, which flows into the sea between Hiogo and Kobe, a temple commemorates the spot where Kusunoki Masashige, the mirror of Japanese loyalty, met his death in battle in 1336. The temple of Ikuta was erected on the site of the ancient fane built by Jingo on her return from Korea in the 3rd century.

Hiogo's original name was Bako. Its position near the entrance of the Inland Sea gave it some maritime importance from a very early period, but it did not become really prominent until the 12th century, when Kiyomori, chief of the Taira clan, transferred the capital from Kioto to Fukuhara, in Hiogo's immediate neighbourhood, and undertook various public works for improving the place. The change of capital was very brief, but Hiogo benefited permanently from the distinction.

HIP. (1) (From O. Eng. _hype_, a word common in various forms to many Teutonic languages; cf. Dutch _heup_, and Ger. _Hufte_), the projecting part of the body formed by the top of the thighbone and the side of the pelvis, in quadrupeds generally known as the haunch (see JOINTS). (2)(O. Eng. _heope_, from same root as M.H. Ger. _hiefe_, a thorn-bush), the fruit of the dog-rose (_Rosa canina_); "hips" are usually joined with "haws," the fruit of the hawthorn.

HIP-KNOB, in architecture, the finial on the hip of a roof, between the barge-boards of a gable.

HIPPARCHUS (fl. 146-126 B.C.), Greek astronomer, was born at Nicaea in Bithynia early in the 2nd century B.C. He observed in the island of Rhodes probably from 161, certainly from 146 until about 126 B.C., and made the capital discovery of the precession of the equinoxes in 130 (see ASTRONOMY: _History_). The outburst of a new star in 134 B.C. is stated by Pliny (_Hist. nat._ ii. 26) to have prompted the preparation of his catalogue of 1080 stars, substantially embodied in Ptolemy's _Almagest_. Hipparchus founded trigonometry, and compiled the first table of chords. Scientific geography originated with his invention of the method of fixing terrestrial positions by circles of latitude and longitude. There can be little doubt that the fundamental part of his astronomical knowledge was derived from Chaldaea. None of his many works has survived except a Commentary on the _Phaenomena_ of Aratus and Eudoxus, published by P. Victorius at Florence in 1567, and included by D. Petavius in his _Uranologium_ (Paris, 1630). A new edition was published by Carolus Manitius (Leipzig, 1894).

See J. B. J. Delambre, _Histoire de l'astronomie ancienne_, i. 173; P. Tannery, _Recherches sur l'histoire de l'astr. ancienne_, p. 130; A. Berry, _Hist. of Astronomy_, pp. 40-61; M. Marie, _Hist. des sciences_, i. 207; G. Cornewall Lewis, _Astronomy of the Ancients_, p. 207; R. Grant, _Hist. of Phys. Astronomy_, pp. 318, 437; F. Boll, _Sphaera_, p. 61 (Leipzig, 1903); R. Wolf, _Geschichte der Astronomie_, p. 45; J. F. Montucla, _Hist. des mathematiques_, t. i. p. 257; J. A. Schmidt, _Variorum philosophicorum decas_, cap. i. (Jenae, 1691). (A. M. C.)

HIPPASUS OF METAPONTUM, Pythagorean philosopher, was one of the earliest of the disciples of Pythagoras. He is mentioned both by Diogenes Laertius and by Iamblichus, but nothing is known of his life. Diogenes says that he left no writings, but other authorities make him the author of a [Greek: mystikos logos] directed against the Pythagoreans. According to Aristotle (_Metaphysica_, i. 3), he was an adherent of the Heraclitean fire-doctrine, whereas the Pythagoreans maintained the theory that number is the principle of everything. He seems to have regarded the soul as composed of igneous matter, and so approximates the orthodox Pythagorean doctrine of the central fire, or Hestia, to the more detailed theories of Heraclitus. In spite of this divergence, Hippasus is always regarded as a Pythagorean.

See Diogenes viii. 84; Brandis, _History of Greek and Roman Philosophy_; also PYTHAGORAS.

HIPPEASTRUM, in botany, a genus of the natural order Amaryllidaceae, containing about 50 species of bulbous plants, natives of tropical and sub-tropical South America. In cultivation they are generally known as _Amaryllis_. The handsome funnel-shaped flowers are borne in a cluster of two to many, at the end of a short hollow scape. The species and the numerous hybrids which have been obtained artificially, show a great variety in size and colour of the flower, including the richest deep crimson and blood-red, white, or with striped, mottled or blended colours. They are of easy culture, and free-blooming habit. Like other bulbs they are increased by offsets, which should be carefully removed when the plants are at rest, and should be allowed to attain a fair size before removal. These young bulbs should be potted singly in February or March, in mellow loamy soil with a moderate quantity of sand, about two-thirds of the bulb being kept above the level of the soil, which should be made quite solid. They should be removed to a temperature of 60 deg. by night and 70 deg. by day, very carefully watered until the roots have begun to grow freely, after which the soil should be kept moderately moist. As they advance the temperature should be raised to 70 deg. at night, and to 80 deg. or higher with sun heat by day. They do not need shading, but should have plenty of air, and be syringed daily in the afternoon. When growing they require a good supply of water. After the decay of the flowers they should be returned to a brisk moist temperature of from 70 deg. to 80 deg. by day during summer to perfect their leaves, and then be ripened off in autumn. Through the winter they should have less water, but must not be kept entirely dry. The minimum temperature should now be about 55 deg., to be increased 10 deg. or 15 deg. in spring. As the bulbs get large they will occasionally need shifting into larger pots. Propagation is also readily effected by seeds for raising new varieties. Seeds are sown when ripe in well drained pans of sandy loam at a temperature of about 65 deg. The seedlings when large enough to handle are placed either singly in very small pots or several in a pot or shallow pan, and put in a bottom heat, in a moist atmosphere with a temperature from 60 deg. to 70 deg. _H. Ackermanni_, with large, handsome, crimson flowers--itself a hybrid--is the parent of many of the large-flowered forms; _H. equestre_ (Barbados lily), with yellowish-green flowers tipped with scarlet, has also given rise to several handsome forms; _H. aulicum_ (flowers crimson and green), _H. pardinum_ (flowers creamy-white spotted with crimson), and _H. vittatum_ (flowers white with red stripes, a beautiful species and the parent of many varieties), are stove or warm greenhouse plants. These kinds, however, are now only regarded as botanical curiosities, and are rarely grown in private or commercial establishments. They have been ousted by the more gorgeous looking hybrids, which have been evolved during the past 100 years. _H. Johnsoni_ is named after a Lancashire watchmaker who raised it in 1799 by crossing _H. Reginae_ with _H. vittatum_. Since that time other species have been used for hybridizing, notably _H. reticulatum_, _H. aulicum_, _H. solandriflorum_, and sometimes _H. equestre_ and _H. psittacinum_. The finest forms since 1880 have been evolved from _H. Leopoldi_ and _H. pardinum_. (J. Ws.)

HIPPED ROOF, the name given in architecture to a roof which slopes down on all four sides instead of terminating on two sides against a vertical gable. Sometimes a compromise is made between the two, half the roof being hipped and half resting on the vertical wall; this gives much more room inside the roof, and externally a most picturesque effect, which is one of the great attractions of domestic architecture in the south of England, and is rarely found in other countries.

HIPPEL, THEODOR GOTTLIEB VON (1741-1796), German satirical and humorous writer, was born on the 31st of January 1741, at Gerdauen in East Prussia, where his father was rector of a school. He enjoyed an excellent education at home, and in his sixteenth year he entered Konigsberg university as a student of theology. Interrupting his studies, he went, on the invitation of a friend, to St Petersburg, where he was introduced at the brilliant court of the empress Catherine II. Returning to Konigsberg he became a tutor in a private family; but, falling in love with a young lady of high position, his ambition was aroused, and giving up his tutorship he devoted himself with enthusiasm to legal studies. He was successful in his profession, and in 1780 was appointed chief burgomaster in Konigsberg, and in 1786 privy councillor of war and president of the town. As he rose in the world, however, his inclination for matrimony vanished, and the lady who had stimulated his ambition was forgotten. He died at Konigsberg on the 23rd of April 1796, leaving a considerable fortune. Hippel had extraordinary talents, rich in wit and fancy; but his was a character full of contrasts and contradictions. Cautiousness and ardent passion, dry pedantry and piety, morality and sensuality; simplicity and ostentation composed his nature; and, hence, his literary productions never attained artistic finish. In his _Lebenslaufe nach aufsteigender Linie_ (1778-1781) he intended to describe the lives of his father and grandfather, but he eventually confined himself to his own. It is an autobiography, in which persons well known to him are introduced, together with a mass of heterogeneous reflections on life and philosophy. _Kreuz- und Querzuge des Ritters A bis Z_ (1793-1794) is a satire levelled against the follies of the age--ancestral pride and the thirst for orders, decoration and the like. Among others of his better known works are _Uber die Ehe_ (1774) and _Uber die burgerliche Verbesserung der Weiber_ (1792). Hippel has been called the fore-runner of Jean Paul Richter, and has some resemblance to this author, in his constant digressions and in the interweaving of scientific matter in his narrative. Like Richter he was strongly influenced by Laurence Sterne.

In 1827-1838 a collected edition of Hippel's works in 14 vols., was issued at Berlin. _Uber die Ehe_ has been edited by E. Brenning (Leipzig, 1872), and the _Lebenslaufe nach aufsteigender Linie_ has in a modernized edition by A. von Ottingen (1878), gone through several editions. See J. Czerny, _Sterne, Hippel und Jean Paul_ (Berlin, 1904).

HIPPIAS OF ELIS, Greek sophist, was born about the middle of the 5th century B.C. and was thus a younger contemporary of Protagoras and Socrates. He was a man of great versatility and won the respect of his fellow-citizens to such an extent that he was sent to various towns on important embassies. At Athens he made the acquaintance of Socrates and other leading thinkers. With an assurance characteristic of the later sophists, he claimed to be regarded as an authority on all subjects, and lectured, at all events with financial success, on poetry, grammar, history, politics, archaeology, mathematics and astronomy. He boasted that he was more popular than Protagoras, and was prepared at any moment to deliver an extempore address on any subject to the assembly at Olympia. Of his ability there is no question, but it is equally certain that he was superficial. His aim was not to give knowledge, but to provide his pupils with the weapons of argument, to make them fertile in discussion on all subjects alike. It is said that he boasted of wearing nothing which he had not made with his own hands. Plato's two dialogues, the _Hippias major_ and _minor_, contain an expose of his methods, exaggerated no doubt for purposes of argument but written with full knowledge of the man and the class which he represented. Ast denies their authenticity, but they must have been written by a contemporary writer (as they are mentioned in the literature of the 4th century), and undoubtedly represent the attitude of serious thinkers to the growing influence of the professional Sophists. There is, however, no question that Hippias did a real service to Greek literature by insisting on the meaning of words, the value of rhythm and literary style. He is credited with an excellent work on Homer, collections of Greek and foreign literature, and archaeological treatises, but nothing remains except the barest notes. He forms the connecting link between the first great sophists, Protagoras and Prodicus, and the innumerable eristics who brought their name into disrepute.

For the general atmosphere in which Hippias moved see SOPHISTS; also histories of Philosophy (e.g. Windelband, Eng. trans. by Tufts, pt. 1, c. 2, SS 7 and 8).

HIPPO, a Greek philosopher and natural scientist, classed with the Ionian or physical school. He was probably a contemporary of Archelaus and lived chiefly in Athens. Aristotle declared that he was unworthy of the name of philosopher, and, while comparing him with Thales in his main doctrine, adds that his intellect was too shallow for serious consideration. He held that the principle of all things is moisture ([Greek: to hygron]); that fire develops from water, and from fire the material universe. Further he denied all existence save that of material things as known through the senses, and was, therefore, classed among the "Atheists." The gods are merely great men canonized by popular tradition. It is said that he composed his own epitaph, wherein he claims for himself a place in this company.

HIPPOCRAS, an old medicinal drink or cordial, made of wine mixed with spices--such as cinnamon, ginger and sugar--and strained through woollen cloths. The early spelling usual in English was _ipocras_, or _ypocras_. The word is an adaptation of the Med. Lat. _Vinum Hippocraticum_, or wine of Hippocrates, so called, not because it was supposed to be a receipt of the physician, but from an apothecary's name for a strainer or sieve, "Hippocrates' sleeve" (see W. W. Skeat, _Chaucer_, note to the _Merchant's Tale_).

HIPPOCRATES, Greek philosopher and writer, termed the "Father of Medicine," was born, according to Soranus, in Cos, in the first year of the 80th Olympiad, i.e. in 460 B.C. He was a member of the family of the Asclepiadae, and was believed to be either the nineteenth or seventeenth in direct descent from Aesculapius. It is also claimed for him that he was descended from Hercules through his mother, Phaenarete. He studied medicine under Heraclides, his father, and Herodicus of Selymbria; in philosophy Gorgias of Leontini and Democritus of Abdera were his masters. His earlier studies were prosecuted in the famous Asclepion of Cos, and probably also at Cnidos. He travelled extensively, and taught and practised his profession at Athens, probably also in Thrace, Thessaly, Delos and his native island. He died at Larissa in Thessaly, his age being variously stated as 85, 90, 104 and 109. The incidents of his life are shrouded by uncertain traditions, which naturally sprang up in the absence of any authentic record; the earliest biography was by one of the Sorani, probably Soranus the younger of Ephesus, in the 2nd century; Suidas, the lexicographer, wrote of him in the 11th, and Tzetzes in the 12th century. In all these biographies there is internal evidence of confusion; many of the incidents related are elsewhere told of other persons, and certain of them are quite irreconcilable with his character, so far as it can be judged of from his writings and from the opinions expressed of him by his contemporaries; we may safely reject, for instance, the legends that he set fire to the library of the Temple of Health at Cnidos, in order to destroy the evidence of plagiarism, and that he refused to visit Persia at the request of Artaxerxes Longimanus, during a pestilential epidemic, on the ground that he would in so doing be assisting an enemy. He is referred to by Plato (_Protag._ p. 283; _Phaedr._ p. 211) as an eminent medical authority, and his opinion is also quoted by Aristotle. The veneration in which he was held by the Athenians serves to dissipate the calumnies which have been thrown on his character by Andreas, and the whole tone of his writings bespeaks a man of the highest integrity and purest morality.

Born of a family of priest-physicians, and inheriting all its traditions and prejudices, Hippocrates was the first to cast superstition aside, and to base the practice of medicine on the principles of inductive philosophy. It is impossible to trace directly the influence exercised upon him by the great men of his time, but one cannot fail to connect his emancipation of medicine from superstition with the widespread power exercised over Greek life and thought by the living work of Socrates, Plato, Aeschylus, Sophocles, Euripides, Herodotus and Thucydides. It was a period of great intellectual development, and it only needed a powerful mind such as his to bring to bear upon medicine the same influences which were at work in other sciences. It must be remembered that his training was not altogether bad, although superstition entered so largely into it. He had a great master in Democritus, the originator of the doctrine of atoms, and there is every reason to believe that the various "asclepia" were very carefully conducted hospitals for the sick, possessing a curious system of case-books, in the form of votive tablets, left by the patients, on which were recorded the symptoms, treatment and result of each case. He had these records at his command; and he had the opportunity of observing the system of training and the treatment of injuries in the gymnasia. One of his great merits is that he was the first to dissociate medicine from priest-craft, and to direct exclusive attention to the natural history of disease. How strongly his mind revolted against the use of charms, amulets, incantations and such devices appears from his writings; and he has expressly recorded, as underlying all his practice, the conviction that, however diseases may be regarded from the religious point of view, they must all be scientifically treated as subject to natural laws (_De aere_, 29). Nor was he anxious to maintain the connexion between philosophy and medicine which had for long existed in a confused and confusing fashion.[1] His knowledge of anatomy, physiology and pathology was necessarily defective, the respect in which the dead body was held by the Greeks precluding him from practising dissection; thus we find him writing of the tissues without distinguishing between the various textures of the body, confusing arteries, veins and nerves, and speaking vaguely of the muscles as "flesh." But when we come to study his observations on the natural history of disease as presented in the living subject, we recognize at once the presence of a great clinical physician. Hippocrates based his principles and practice on the theory of the existence of a spiritual restoring essence or principle, [Greek: physis], the _vis medicatrix naturae_, in the management of which the art of the physician consisted. This art could, he held, be only obtained by the application of experience, not only to disease at large, but to disease in the individual. He strongly deprecated blind empiricism; the aphorism "[Greek: he peira sphalere, he krisis chalepe]" (whether it be his or not), tersely illustrates his position. Holding firmly to the principle, [Greek: nouson physies ietroi], he did not allow himself to remain inactive in the presence of disease; he was not a merely "expectant" physician; as Sydenham puts it, his practice was "the support of enfeebled and the coercion of outrageous nature." He largely employed powerful medicines and blood-letting both ordinary and by cupping. He advises, however, great caution in their application. He placed great dependence on diet and regimen, and here, quaint as many of his directions may now sound, not only in themselves, but in the reasons given, there is much which is still adhered to at the present day. His treatise [Greek: Peri aeron, hydaton, kai topon] (_Airs, Waters, and Places_) contains the first enunciation of the principles of public health. Although the treatises [Greek: Peri krisimon] cannot be accepted as authentic, we find in the [Greek: Prognostikon] evidence of the acuteness of observation in the manner in which the occurrence of critical days in disease is enunciated. His method of reporting cases is most interesting and instructive; in them we can read how thoroughly he had separated himself from the priest-physician. Laennec, to whom we are indebted for the practice of auscultation, freely admits that the idea was suggested to him by study of Hippocrates, who, treating of the presence of morbid fluids in the thorax, gives very particular directions, by means of succussion, for arriving at an opinion regarding their nature. Laennec says, "Hippocrate avait tente l'auscultation immediate." Although the treatise [Greek: Peri nouson] is doubtfully from the pen of Hippocrates, it contains strong evidence of having been the work of his grandson, representing the views of the Father of Medicine. Although not accurate in the conclusions reached at the time, the value of the method of diagnosis is shown by the retention in modern medicine of the name and the practice of "Hippocratic succussion." The power of graphic description of phenomena in the Hippocratic writings is illustrated by the retention of the term "facies Hippocratica," applied to the appearance of a moribund person, pictured in the _Prognostics_. In surgery his writings are important and interesting, but they do not bear the same character of caution as the treatises on medicine; for instance, in the essay _On Injuries of the Head_, he advocates the operation "of trephining" more strongly and in wider classes of cases than would be warranted by the experience of later times.

The _Hippocratic Collection_ consists of eighty-seven treatises, of which a part only can be accepted as genuine. The collection has been submitted to the closest criticism in ancient and modern times by a large number of commentators (for full list of the early commentators, see Adams's _Genuine Works of Hippocrates_, Sydenham Society, i. 27, 28). The treatises have been classified according to (1) the direct evidence of ancient writers, (2) peculiarities of style and method, and (3) the presence of anachronisms and of opinions opposed to the general Hippocratic teaching--greatest weight being attached to the opinions of Erotian and Galen. The general estimate of commentators is thus stated by Adams: "The peculiar style and method of Hippocrates are held to be conciseness of expression, great condensation of matter, and disposition to regard all professional subjects in a practical point of view, to eschew subtle hypotheses and modes of treatment based on vague abstractions." The treatises have been grouped in the four following sections: (1) genuine; (2) those consisting of notes taken by students and collected after the death of Hippocrates; (3) essays by disciples; (4) those utterly spurious. Littre accepts the following thirteen as absolutely genuine: (1) _On Ancient Medicine_ ([Greek: Peri archaies ietrikes]); (2) _The Prognostics_ ([Greek: Prognostikon]); (3) _The Aphorisms_ ([Greek: Aphorismoi]); (4) _The Epidemics_, i. and iii. ([Greek: Epidemion a' kai g']); (5) _On Regimen in Acute Diseases_ ([Greek: Peri diaites oxeon]); (6) _On Airs, Waters, and Places_ ([Greek: Peri aeron, hydaton, kai topon]); (7) _On the Articulations_ ([Greek: Peri arthron]); (8) _On Fractures_ ([Greek: Peri agmon]); (9) _The Instruments of Reduction_ ([Greek: Mochlikos]); (10) _The Physician's Establishment, or Surgery_ ([Greek: Kat' ietreion]); (11) _On Injuries of the Head_ ([Greek: Peri ton en kephale tromaton]); (12) _The Oath_ ([Greek: Horkos]); (13) _The Law_ ([Greek: Nomos]). Of these Adams accepts as certainly genuine the 2nd, 6th, 5th, 3rd (7 books), 4th, 7th, 8th, 9th and 12th, and as "pretty confidently acknowledged as genuine, although the evidence in their favour is not so strong," the 1st, 10th and 13th, and, in addition, (14) _On Ulcers_ ([Greek: Peri helkon]); (15) _On Fistulae_ ([Greek: Peri syringon]); (16) _On Hemorrhoids_ ([Greek: Peri haimorrhoidon]); (17) _On the Sacred Disease_ ([Greek: Peri hieres nousou]). According to the sceptical and somewhat subjective criticism of Ermerins, the whole collection is to be regarded as spurious except _Epidemics_, books i. and iii. (with a few interpolations), _On Airs, Waters, and Places_, _On Injuries of the Head_ ("insigne fragmentum libri Hippocratei"), the former portion of the treatise _On Regimen in Acute Diseases_, and the "obviously Hippocratic" fragments of the _Coan Prognostics_. Perhaps also the _Oath_ may be accepted as genuine; its comparative antiquity is not denied. The _Aphorisms_ are certainly later and inferior. In the other non-Hippocratic writings Ermerins thinks he can distinguish the hands of no fewer than nineteen different authors, most of them anonymous, and some of them very late.

The earliest Greek edition of the Hippocratic writings is that which was published by Aldus and Asulanus at Venice in 1526 (folio); it was speedily followed by that of Frobenius, which is much more accurate and complete (fol., Basel, 1538). Of the numerous subsequent editions, probably the best was that of Foesius (Frankfort, 1595, 1621, Geneva, 1657), until the publication of the great works of Littre, _Oeuvres completes d'Hippocrate, traduction nouvelle avec le texte grec en regard, collationnee sur les manuscrits et toutes les editions, accompagnee d'une introduction, de commentaires medicaux, de variantes, et de notes philologiques_ (10 vols., Paris, 1839-1861), and of F. Z. Ermerins, _Hippocratis et aliorum medicorum veterum reliquiae_ (3 vols., Utrecht, 1859-1864). See also Adams (as cited above), and Reinhold's _Hippocrates_ (2 vols., Athens, 1864-1867). Daremberg's edition of the _Oeuvres choisies_ (2nd ed., Paris, 1855) includes the _Oath_, the _Law_, the _Prorrhetics_,