Part II

; but the attempt has been made to designate the various classes and orders with sufficient clearness to enable the collector to identify the objects commonly found on the shore, and to follow the subject further, if he so desires, in technical books.

It is hoped that this book will suggest a new interest and pleasure to many, that it will encourage the pastime of collecting and classifying, and that it will serve as a practical guide to a better acquaintance with this branch of natural history, without necessitating serious study. Marine organisms are interesting acquaintances when once introduced, and the real purpose of the author is to present, to the latent naturalist, friends whom he will enjoy.

Grateful acknowledgment is here made to the following persons who have kindly assisted and advised the author and have also extended valued courtesies to her in the preparation of this book: Smith Ely Jelliffe, M.D., Ph.D.; Herbert M. Richards, A.B., Ph.D., Professor of Botany in Barnard College; Marshall A. Howe, A.B., Ph.D.; the Rev. George A. Holst; the Long Island Historical Society of Brooklyn for the use of its fine herbarium, containing the collections of Mr. John Hooper, Mr. A. R. Young, and others, from which most of the illustrations of algae in this book were photographed; Miss Toedtleberg, Librarian of the Long Island Historical Society; Miss Ingalls, in charge of the Museum of the Long Island Historical Society; Dr. Theodore Gill; James A. Benedict, Ph.D., Assistant Curator of Marine Invertebrates in the Smithsonian Institution; Miss Mary J. Rathbun, second Assistant Curator of Marine Invertebrates in the Smithsonian Institution; Miss Harriet Richardson; and especially to Mr. John B. Henderson, Jr.

* * * * *

Thanks, also, are due to Messrs. Macmillan & Co. for permission to use cuts from the "Cambridge Natural History," Parker and Haswell's "Zooelogy", and Murray's "Introduction to the Study of Seaweeds"; to Swan Sonnenschein & Co. for the use of cuts from Sedgwick's "Student's Text-book of Zooelogy"; to Wilhelm Engelmann for a cut from "Die natuerlichen Pflanzenfamilien" of Engler and Prantl; to Little, Brown & Co. for permission to reproduce illustrations from Agassiz's "Contributions to the Natural History of the United States"; to Henry Holt & Co. for a cut from McMurrich's "Invertebrate Morphology"; to Houghton, Mifflin & Co. for cuts from the "Riverside Natural History" and Agassiz's "Seaside Studies in Natural History"; to the Commonwealth of Massachusetts for the use of illustrations from Verrill's "Report upon the Invertebrate Animals of Vineyard Sound and the Adjacent Waters," Gould's "Invertebrata of Massachusetts" (ed. Binney), and certain fisheries reports; and to the United States government for illustrations taken from Bulletin 37 of the Smithsonian Institution and from reports of the United States Fish Commission.

CONTENTS

INTRODUCTION

PAGE

I Signs on the Beach 1

II Collecting 6

III Classification 19

IV Animal Life in its Lowest Forms 21

V Distribution of Animal Life in the Sea 23

VI Some Botanical Facts about Algae 25

VII Naming of Plants 28

VIII Distribution of Algae 30

IX Some Peculiar and Interesting Varieties of Algae 32

X Uses of Algae 37

XI Collecting at Bar Harbor 40

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