Book II

. in Aug. are scarce, but to it I refer _Contra. Ac._ I. 7 _placuit Ciceroni nostro beatum esse qui verum investigat etiam si ad eius inventionem non valeat pervenire_, also _ibid._ III. 10 _illis (Academicis) placuit esse posse hominem sapientem, et tamen in hominem scientiam cadere non posse_. These I refer to Cicero's development of the _probabile_ in Book II ., although I ought to say that Krische, p. 65, maintains that the substance of Catulus' exposition in the _Ac. Priora_ transferred to Book IV . of the _Ac. Posteriora_. As this would leave very meagre material for