i 5 o 



THE QUARTERLY REVIEW OF BIOLOGY 



up to the end of the eleventh century. 

 The book is essentially an enormously 

 thorough, detailed, and erudite bibli- 

 ography, with pertinent and penetrating 



annotations. The subject is conceived so 

 broadly that it will serve about equally 

 well for a source book on the history of 

 civilization, as on the history of science. 



