The Microscope. 57 



The middle cylinder is surrounded at its lower margin with a 

 brass collar to which a short tube is attached. Into this tube fits the 

 lamp rod, while the illuminator rests on the rod controlling the light. 

 It is altoscether an ingenious and useful device. 



We notice that the editorial department of the American 

 Monthly Microscopical Journal has passed into the hands of 

 Prof. Henry L. Osborn, of Purdue University. Prof. Osborn's 

 well-known qualifications as a scientific teacher make him pe- 

 culiarly fitted for this position, and we have no doubt that the 

 Journal under his management will not only continue to main- 

 tain the high standard to which it has been brought through the 

 efforts of Mr. Romyn Hitchcock, but that the coming year will be the 

 most successful and useful yet experienced by this magazine. Mr. 

 Rufus W. Deering, of Washington, D. C, will continue to act as 

 business manag-er. 



James E. Reeves, M. D., of Wheeling, W. Va., has sent us two 

 slides of anthrax bacilli, as found in the liver and kidney of a 

 rabbit, also the lung of a pig having died of the swine plague and 

 a slide of bacillus tuberculosis, all of which are neatly mounted and 

 characteristic of Dr. Reeves' fine work. 



Fkom Miss M. A. Booth, of Longmeadow, Mass., we have received 

 eight perfectly mounted slides of diatomaceous materials cleanly 

 washed, but not to the extent of destroying their delicate structure; 

 the mounting and remarkable separation of the diatoms adds beauty 

 to the slide — and as they are correctly labeled, the student can study 

 carefully and accurately the diatoms without being confused with the 

 large number of different varieties upon the same slide and under the 

 field. These slides are indeed ideal. Miss Booth furnishes 250 

 varieties of diatoms from all over the world, and the charge per slide 

 is remarkably low. 



While in Cleveland a few days since, we were highly enter- 

 tained by an examination of the beautiful slides in Prof. A. Y. 

 Moore's rai-e collections. Among others, we noticed a slide from 

 the lung of Garfield, and one from the brain of Guiteau. 



The Microscope is indebted to Dr. Taylor for a number of 

 admirable photographs and slides of butter and fat crystals. We 

 presume that many of the former are the illustrations which should 

 have appeared with his paper in the last volume (1885) of the A. 

 S. M. transactions. 



