328 THE AMERICAN MONTHLY [Nov., 



AlttT dcvt)tiiig 40 i>:i<:t's to ^HMicrnl methods, such as I'uttiiiti;, 

 staining, clejiring, aiul nuicrnuioii, the niiorocheniistry ot or- 

 paiiic ami ot inorganic coniitoumls is treated in ahout 100 pages 

 in tiio most thorough ainl exliaustivi' manner. One will he as- 

 tDnit^hed. in h)oking it over, al the nnniense amount of knowl- 

 edge ol the suhjeet that ha.s ht en created in the past 25 years. 

 The new words, wliioh were not ii) any dictionary in ISGO, must 

 nuniher several score. This research, as any one will see Irom 

 tlie list ol authorities cited in tlie appendix has heen very largely 

 made hy the Germans. 



A third part of the hook (110 pp). covers methods for investi- 

 gation of ihe cell-wall and of the various cell-contents, especial 

 attention being given to the protoplasm and cell-sip. Here we 

 stiike a perfect mine of u.^eful and enchanting study. The ways 

 of approach to the biologic })rolilejns of vegetable life are shown 

 to be multifarious, l^o many new and enticing ir^ethods being 

 given, must stimulate students to a general assault upon these 

 questions lying at or near the origin of vegetal existence. Here- 

 after, one will need to pul)lisli his discoveries promptly or he 

 will be antedated by olheis in the same field. Every chemist 

 as well as every microsco]ust will (ind useful information in tiiis 

 volume which closes with a chapter on Bacteria and a line index. 



Kcw Truths in OphUKilmology. Hy G. U. Savage, M. D. 8** 

 square. 152 ]ip. 82 illustrations. Nashville, Tenn. Published 

 by the Author. 



Dr. Savage, who is Professor of Oi)hthalmology in the Medi- 

 cal Department of the University of Nashville and Vanderbilt 

 University, is an acknowledged authority upon all matters re- 

 lating to the eye. He has written this Ijook for eye specialists 

 and not for laymen. We are not competent, therefore, to criti- 

 cise it but an occulist has assured us that this book constitutes 

 the greatest contribution to the science of Ophthalmology that 

 has appeared during the jnist twenty-years. 



Mechanically the book is excellent, but we see no reason for 

 adopting the s(iuare form. There are none of the illustrations 

 but might have been engraved to fit the usual octavo page. A 

 glossary of the many technical terms employed would help to 

 make the book more intelligible even to the practicing physi- 

 cian and an index of three or four pages length would improve 

 the book. 



