112 THE MICROSCOPE. [July, 



THE MICROSCOPE. 



Contents for July, 1895. 



The Trichodine Infusoria, a Parasite of the Fresh-Water Hydra. Trans- 

 lation. (Illustrated.) Chrysanthemum 97 



How the Change in Color in Petals Takes Place. Keeping Notes. The 



Brownian Movement. A. M.Edwards 101 



Proceedings of the American Microscopical Society 103 



Editorial. — Viewing the Astral Body 104 



Commerce-Blackmailing 107 



Practical Suggestions.— By L. A. Willson 107 



Equisetum 107 



Starch 108 



Thin Sections of Woods 108 



Fibres 108 



Science Gossip. — Eye of Beetle Multiple Image 109 



Starch 109 



Correspondence. — Leibert's Microscopes 110 



Purifying Alcohol 110 



The Superiority of Direct Illumination 110 



Questions Answered. — By S. G. Shanks Ill 



229. Purifying Alcohol Ill 



Necrology. — Geo. A. Rex, M. D. Ill 



THE MICROSCOPICAL JOURNAL. 



Contents for July, 1895. 



Notice of Microscopic Fossils Occurring in Tertiary Marl Strata. Cun- 

 ningham. (With Frontispiece.) 193 



Microscopic Technique Applied to Histology IX. Boneval 197 



Morphodiscs, Coccoliths, and Discoliths. Edwards 203 



Notice of John A. Ryder 205 



Classification of the Radiolaria : Key to Species of Barbadoes. Carter 206 



Editorial. — American Microscopical Society 213 



Prof Leslie A. Lee •. 215 



Microscopical Apparatus. — Automatic Microtome 216 



Bacteriology. — Tuberculosis 220 



Microscopical Manipulation.— To Photograph Vertically 222 



Seeing Air-Borne Spores 223 



Biological Notes. — Sand Fly 223 



Microscopical Societies. — Lincoln Club 224 



FOR SALE. — Crouch Intermediate binocular, circolar glass stage, me- 

 chanical centering on substage, four eye pieces, achromatic condenser polariz- 

 ing attachment, stops for dark ground and oblique illumination, parabaloid, 

 two solid eye pieces made by Spencer. All in perfect order and have been 

 used very little. $100. GEO. A. BATES, Auburndale, Mass. 



FOR SALE. — Barbadoes Earth, containing many rare forms of Radiolaria. 

 Send 40 cents, stamps, for inch cube of this material to 



S. S. DAY, 23 Olyphant St., Morristown, N. J. 



