Vol. XI, No. 2. 



FEBRUARY, 1890. 



No. 122. 



The American 



MICROS 



MOMTHLY 



CONTAINING 



CONTRIBUTIONS TO BIOLOGY. 



CON TEN T S 



Some Recent Microscopical Apparatus. — 

 Bausch & LOMB. 



A Microscope Stand. — Burrill. 



Cleaning Diatoms. — Nott. 



Notes on the Fossil Marine Diatom De- 

 posit from Artesian Wells at Atlantic 

 City, N. J.— Peticolas. 



Report upon the Postal Club Boxes. — 

 X. — Queen Mab. 



A Search for Diatoms in Boston Harbor, 

 in September, 18S9. — Terry. 



Marl from Fort Washington, Md. — Fos- 

 ter. 



Medical Microscopy. — The Positive Di- 



agnosis of Syphilis. "The Mechan- 

 ism of Immunity." Prof. II. N. Lyon. 

 Tuberculosis and Butcher's Meat."^ 



Notes. — Photo-Micrography. 



Microscopical Societies.— St. Louis. 

 Washington. D. C. San Francisco, 

 Cal. 



NoTicE.s OF Books. — Qiieen&; Co. Dowd. 

 Collins. Meek. Wood. Young. Rich- 

 ardson. Comstock. Flagg. Hogue. 

 Goodwin. Proceedings of American 

 Societ}' of Microscopists. 



Recent Writings of Interest to Mi- 

 croscopists. 



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

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



WASHINGTON ( (MARIO 1890 



GirfsoN Brothers, Printers 



Copyright, 1890, by Chas. W. Smiley. AH rights reserved. 



