OPINIONS OF THE PRESS. 



Glasgow Herald. 



"It is written in a manly, dignified spirit, is never dull, and 

 frequently rises into true eloquence. Especially is it notable for 

 clearness of definition and exactness of illustration. The author 

 indeed is unsparing in his denunciation of those who, writing 

 or speaking on scientific subjects, use vague terms which may 

 be understood in more senses than one, and thus lead to uncer- 

 tainty or confusion of mind. With this fault he cannot himself 

 be charged. The abstruse questions which he takes up are 

 popularised and made interesting by the use of studiously simple 

 language, which must be understood by any one of ordinary 

 intelligence, and in short there is throughout the book a healthy, 

 invigorating tone of thought which must recommend it to every 

 reader." 



Literary Churchman. 



"Nothing can be more interesting than the way in which the 

 flight of birds is analysed to show the wondrous play and 

 coimterplay of the contrivances by which the laws of Nature 

 are adjusted to work out the Creator's purpose. Nothing can 

 be better than the vivid details by which the rich plumage of 

 birds are described to establish that 'mere beauty and mere 

 variety for their own sakes' are objects sought as independently 

 in the works of Nature as in the works of Man." 



STRAHAN & CO., Publishers, 56, Ludgate Hill. 



