viii 



SCIENCE.- ADVERTISEMENTS. 



A new book 

 by 



Professor 

 Jacques 

 Loeb 



of the University 

 of California 



Studies in General Physiology 



In these two volumes Professor Loeb has collected the results of his 

 experiments with physical life-pheuomena and has presented them 

 in logical sequence. Details of his important physiological work were 

 hitherto quite inaccessible, so that these volumes supply a real need 

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 the books because they recount the preliminary steps which have led 

 to the wonderful results lately attained by Professor Loeb in his 

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In two volumes, $7.50 net, prepaid $7.90 



An 



important work 



Bv 



Professor 

 Albert A. 

 Michelson 



of the University 

 of Chicago 



Light Waives and Their Uses 



This book, containing some of the more far-reaching conclusions 

 of Professor Michelson in his studj' of optics, particularly light 

 waves, is read with great interest by both scientists and laymen. To 

 the former it presents a concise resume of the literature and known 

 facts of the subject ; to the latter it opens an instructive and fascinating 

 realm of science. 



$2.00 net, prepaid $2.12 



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