Ttention." _Dublin Daily Express_.--"The merits of

the book are undoubtedly great. We recommend it to the attentive study of all who are

interested in the subject of evolution." _Manchester Courier_.--"The amateur entering this perplexing
field could hardly have a better guide." _Nation_.--"An exceptionally interesting book." _Scotsman_.--"Impartial
and awakening." _Bristol Mercury_.--"The authors ... handle a subject which has an obvious controversial side
with strength, and there are convincing qualities as well as lucidity in the views so admirably set forth."
_Times_.--"The two authors ... deal suggestively with the difficulties of natural selection ... and their arguments are supported by a goodly array of facts." _Liverpool Courier_.--"Contains a great
deal of well-marshalled observation." _Lancet_.--"A
ve