1890.] MICKOSCOPICAL JOURNAL. 91 



adoption of a screen. This may be made of a piece of stiff paper, the 

 principal part of which is nearly circular (diameter about 8 cm.). The 

 smaller portion is pierced by two holes, through which passes a string 

 by which the apparatus is attached to the microscope-tube. This breath- 

 screen can, of course, be easily fixed in or moved to any position.— y/. 

 Royal Mic7'. Soc.^ Feb. i8go, p. 94. 



Dr. James E. Reeves, of Chattanooga, Tenn., is devoting special at- 

 tention to microscopical diagnosis and examination of tumors and other 

 morbid tissues, secretions, and excretions. He also receives students 

 in microscopical technique, histology, and pathology, including use of 

 microscope, microtome, etc., and has for sale typical mounts in large 

 variety. 



QUERIES. 



Q. Is there any blank catalogue published which is properly ar- 

 ranged for cataloguing and indexing microscopical objects ,^ — W. C. S. 



A. The Ailing Record Book, entitled " Microscopical Records," 

 contains, in addition to numbered spaces for 500 or i ,000 preparations, 

 from 20 to 40 pages of paper ruled for formulas, so that they can be re- 

 ferred to by number, and avoid repeating the details with each object. 

 The plan of entry is based on one presented by Prof. S. H. Gage, of 

 Cornell University, at the meeting of the American Society of Micros- 

 copists held at Chicago in 1883. It has been revised somewhat by 

 Mr. Ailing. The slides are to be catalogued by the common name, 

 scientific name, locality obtained from, obtained by, mounted by, spe- 

 cial object of preparation, method of hardening, staining agent, clear- 

 ing agent, mounting medium, date, and remarks. As there are only 

 three entries to the page, plenty of room is left for each fact. The 

 paper is nicely ruled, the division between the slides being with red 

 ink. 



There is an index sufficiently large for cataloguing each prep- 

 aration under both the common and the scientific name. It can 

 also be used as a record of all objects contained in an entire cabinet. 

 The small size in one-half Russia costs $3.00, while the one twice 

 as large and in same binding, costs $5.00. 



This book is published by Chas. E. Ailing, of Rochester, N. Y., 

 and sold by G. S. Woolman, 116 Fulton street. New York. For spe- 

 cial rate to our subscribers only see advertisement. 



Ward's Microscopical Slide Catalogue. — This is the invention 

 of Dr. R. H. Ward, of Troy, N. Y., and has resulted from the author's 

 effort, during more than twenty-five years, to make a collection of sev- 

 eral thousand slides useful, in teaching as well as in study, to the 

 greatest possible extent, and at the least cost of time and labor. It 

 consists of a combined serial and alphabetical Catalogue, with an Ap- 

 pendix for special notes, etc. The systematic series of blanks, arranged 

 by tens upon the pages for ready reference, is calculated to contain as 

 full a record of important data concerning the slides as can be secured 

 without destroying its convenience as a catalogue. The set form, which 

 secures completeness and uniformity of description by calling for a 

 large number of specified data, is printed only as a heading at the top 



