180 THE AMERICAN MC^NTIILY. [Juno. 



Chicago Academy ok Science, Microscopical Section. 



At tlie last mectinfj of the Section ot" Microscopy of the 

 Acaik-mv of Science Dr. W. H. Knap was elected chairman, 

 and Pii>t. r. L. Morse was elected recorder for the ensuing year. 

 Mr. H. L. Tolnian. tiie retiring; chairnian. delivered a most in- 

 terestinj; talk re<jarding his trip to Europe last year uniler the 

 auspices of the World's Fair authoiitics. He was assured of a 

 large exhibit of microscopes and accessories from the leading 

 foreign makers. This exhibit will be classified and exhibited in 

 the space secured by the Illinois State Microscopical Society and 

 will be under the care anil supervision of the section of microscopy 

 of the Acaiiemv of Science, which was formerly the Illinois State 

 Microscopical Society. Permission was freely given by all the 

 prospective exhibitors to have stands and accessories shown and 

 used at the meetings of the section. When it is considered that 

 Powell & Leland. Zeiss, Xachet. Ross, Seibcrt, Lutz and other 

 Euiopean makers will send their finest productions here, not ex- 

 cepting Zeiss' famous objective of 1.63 n. a., and that we shall 

 have the jirivilegeof examining them, it is not at all improbable that 

 next vear will be one of great interest to microscopists. — In- 

 quisitor. 



NEW PIBLK ATIONS. 



Primary Microscopy and Biology. By Albert Schneider. 

 M. D. 8vo, 100 pp.. 20 cuts. Price $1. 



This book will answer as a guide for any beginner, as it is 

 strictly elementary and contains a little of everything. A dozen 

 pages are devoted to mathematical demonstrations of the phvsical 

 properties of lenses. These pages could easily have been omitted, 

 as beginners will not feel much interest therein. Another dozen 

 pages contain necessary descriptions of microscopical apparatus. 

 In another chapter are some discussions of life and of the ground- 

 work of biology, which are interesting for novices, and intended 

 as introductory to some simple microscoi^ical experiments. 



Directions for elementary microscopical work upon starch, 

 pollen, yeast, insects, amoeba, and vegetable tissues constitute the 

 most important parts of the book. A chapter on vegetable his- 

 tologv is very good. A dozen useful formulae are labelled 

 •• recipes," and an analytical table of contents jjlaced at the end 

 of the book is misnamed "Index." 



The printer made a good manv blunders, a part of which are 

 noted in an •' errata " sheet. 



The author is modest, claims but little, and so gives all that 

 he pretends to give. 



Some Features of the IVor/d's Columbian Exposition. Qiieen 

 & Co.. Phila. 

 This is a neat brochure of 16 pages designed to advertise their 

 exhibit. 



