The Microscope 



LIBRARY 



NEW YOR 



BOTANIC A 



QARDliN 



AND ITS RELATION TO 



Medicine and Pharmacy. 



Vol. II. Ann Arbor, April, 1882. 



No. 1, 



CONTENTS. 



ORIGINAL COMMUNICATIONg. 

 Some Hints on Mounting. By W. II. 



Walmsley .' j 



Something about Objectives. By Prof. 



A. V . Moore 8 



The Human Red Blood-Coi-puscle 



By Geo. C. Taylor .. n 



The Microscope on the Druggist's 



Counter. Bv " R.'\ . . . ik 



EDITORIAL DEPARTMENT. 



The close of Volume 1 18 



Mr. Lomb'.s Visit " 18 



Professor Arnold's Microphotographs 18 



Dr. Pelletan's Journal 19 



"Brearle.y's Excursion" .... "" 19 



The Elmira Meeting " 19 



H»min Crystals from Jas. H. Logan. 19 



Hartnack's Microscopes 19 



Zentmayer 's New Catalogue 20 



A New " Griffith Club." 20 



Soiree at Elmira 30 



A Letter from Prof. A. Y. Moore! .. 20 



SOCIETY PROCEEDINGS. 



State Microscopical Society of Illinois 21 



Buffalo Microscopical Society 22 



Elmira Microscopical Society '. 23 



Camden Microscopical Society . 24 



SELECTIONS. j- . ** 



The Meteorite. By J. F. Trowbridge. 26 



The Spongilte of Buffalo 28 



Aid of the Microscope in Disease . 30 



REVIEWS ; 33 



#rigimal 



SOME HINTS ON THE PREPARATION AND MOUNTING 

 OF MICROSCOPIC OBJECTS. 



BY W. H. WALMSLEY. 



THIRD PAPER. 



TT IS a matter of regret, I think, to those who have taken the 

 1 trouble to think at all about the matter, that in our microscopic 

 work, the efforts of almost all observers and workers are mainly de- 

 voted to such preparations as require, at least, moderately high pow- 

 ers and carefully arranged transmitted light for proper showing. 

 Doubtless this is the only method by which we can hope to obtain 

 any knowledge of the real structures of tissues, animal or vegetable, 

 or of inorganic substances, such as rocks; but there are thousands 

 of objects in the limitless realms of nature which will afford instruc- 

 tion and delight to the more indifferent of observers,who viewmerelv 



