1913] Book Notices 55 



as regards their taxonomy except in some of the more difficult and 

 extensive groups and a great many species are figured by photo- 

 graphs as well as by line drawings illustrating their more minute 

 structure; especially striking are the many photographic illustra- 

 tions of the webs of various species. These are exceedingly good, 

 and in spite of the great difficulty which attends the reproduction 

 of such fine details few have been treated by the hands of the 

 "retoucher." 



From a scientific standpoint, the most valuable portion of the 

 book is a minute account of the comparative structure of the palpi 

 of male spiders, accompanied by numerous figures. The remainder 

 of the external and internal anatomy is given far less space pro- 

 portionately, but nevertheless rather fully treated. The etio- 

 logical material is presented very generally in one chapter on 

 "The Life of Spiders," and throughout the text are references to 

 individual peculiarities of many of the species as these are treated 

 in their systematic order. At the end is a brief general bibliog- 

 raphy and an index. 



Although this volume will doubtless appeal to a much smaller 

 group of readers than the "Manual" it should serve the worthy 

 purpose of fostering an interest in a neglected group of Arthro- 

 pods, and it deserves a wide circulation. 



C. T. Brues. 



