Vol. XI, No. 7. 



JULY, 1890. 



No. 127. 



5;;::»vThE AMERICAN 



L U 



CONTAINING 



CONTRIBUTIONS TO BIOLOGY. 



CONTENTS 



Some Ne%vlj-Described Desmids (Illus- 

 tratedj. 



Staining and Permanent Preservation of 

 Histological Elements Isolated bj 

 Means of Caustic Potash or Nitric 

 Acid. — Gage. 



The Use of the Simple Microscope in Phar- 

 macy. — Wheu'Ley. 



A New Method for Studying the Elements 

 and TissuesofWarm-Blooded Animals 

 at their Physiological Temperature, — 

 Raxvier. 



The Student Microtome. — Bausch >V' 



Lo.MB. 



Detection of Arsenic by the Microscope.— 



GlHBS. 



Brief History of the San Francisco Micro- 

 scopical Society. — Hanks. 



Medical Microscopy. — Disease Germ- 

 Typhoid Bacilli in Celery. 



Biological Notes.— Bacteria in Hail - 

 Stones. Peach Blight on California 

 Buckeye. 



B ACT ERioLOGY.— Methods of .Stainini; 

 Spores. Slides Received. 



Editorial. — Meeting of the American 

 Society. Walter H. Balloch.- 



BoYs' Dei'Art.ment. — Microscopical Ex- 

 amination of Starch. 



Microscopical Societies.— Washington. 

 D. C. San Francisco, Cal. 



Notices ofBooks. — S. Laing. John Stuart 

 Mill. Gerald MoUoy. Prof. G. A. 

 Wentworth. Charle^ F. Cox. Mrs. 

 Mary Hinman Abel. 



Slijscribers' Notices. 



Chas. W. Smiley, Publisher, Washington, D. C. 

 Terms: For the United States, $1.00. For Great Britain, 5 Shillings. 



WASHINGTON 

 GiasoN Brothers, Printers 



Copyright, i8go, by Chas. W. Smiley, All rights reserved. 



