“The novelty of the field covered in this work and the very fundamental bearings of the data and hypotheses here gathered in a critical summary combine to make Professor Morgan’s work indispensable to anyone who wishes critical information of recent movements in the biological world.”
| + + | Dial. 42: 228. Ap. 1, ’07. 400w. |
“Professor Morgan’s book is the best, indeed the only up-to-the-moment abstract of the results and the various phases of this experimental investigation of the life and make-up of animals. It is not primarily a book for the general reader, but there is no other for him on the same subject. And he can better afford not to understand a few of Professor Morgan’s references and yet be able to rely on what he does understand as being true, than to look for a more popular and less reliable account.”
| + + | Ind. 63: 218. Jl. 25, ’07. 820w. |
“There is much original matter, in spite of the space necessarily given to compilation. The most serious defect is in the index, which is all too scant for such a mass of diverse subject matter.”
| + − | Nation. 84: 343. Ap. 11, ’07. 490w. |
“We may be allowed to compliment the author on his highly successful execution of an arduous task; his workmanship is marked by carelessness, lucidity and impartiality, by the salt of good-tempered criticism.” J. A. T.
| + + | Nature. 76: 313. Ag. 1, ’07. 1160w. | |
| N. Y. Times. 12: 79. F. 9, ’07. 60w. |
“The book treats primarily of those subjects and problems of experimental zoology which have not been considered in other books. The material which is presented is not always fully digested. Style and method of presentation present certain features which can be due only to haste or lack of care.” C. M. Child.
| + − | Science, n.s. 26: 824. D. 13, ’07. 3920w. |