“The chapters on ‘Forms of life,’ ‘Monera,’ and ‘Nutrition’ are written by a master in these fields and tend to compensate for the enormous mass of paralogisms and unproved assertions that constitute perhaps the greater part of the remaining chapters.” C. W. Saleeby.

+ —Acad. 68: 82. Ja. 28, ‘05. 700w.

“Yet the book must be respected for its learning, and is absorbing even when not convincing.”

+ + —Critic. 46: 383. Ap. ‘05. 130w.

“The book is translated into good English, but there are various slips or misprints in names and technical terms.” T. D. A. Cockerell.

+ + —Dial. 38: 232. Ap. 1, ‘05. 1000w.
Ind. 58: 206. Ja. 26, ‘05. 1130w.

“It [the translation] is on the whole clear and vigorous, but it betrays inexpertness. The translator has not the vaguest idea of what he is translating. Defective proofreading.... This book expresses the sincere convictions of a veteran who has done much for biology.”

+ —Nature. 71: 313. F. 2, ‘05. 1550w.
+ +N. Y. Times. 10: 388. Je. 17, ‘05. 270w.

“Notwithstanding this obscurity in parts, the whole book is fairly clear as to its tendency.” Joseph Jacobs.

+ + —N. Y. Times. 10: 570. S. 2, ‘05. 1210w.
Outlook. 79: 505. F. 25, ‘05. 390w.