64 THE MICROSCOPE. 



Standard Time for the United States, Canada and Mexico. By the 

 American Society of Engineers. Pp. 40. Illustrated. 



Microscopical Diagnosis. By the editors of The Microscope. Large 

 8vo. Pp. 300. Geo. S. Davis, publisher. 



Illustrated with a large number of finely executed cuts on wood 



and stone. Over thirty figures of the urinary deposits have been 



carefully drawn by Mrs. Stowell and lithographed by the Detroit 



Lithographic Co. Each slide of crystals was prepared for Mrs. 



Stowell by a person of twenty years' experience in teaching this 



branch. Arrangements have been completed with Mr. Walmsley 



so that his very practical articles on mounting will appear in the 



work. It will contain a complete account of all microscopical facts 



appertaining to medical diagnosis. The work will be ready for 



distribution by the first of June. Special prices will be given to 



all subscribers of The Microscope. 



Cutting Sections of Very Small Objects. — H. Strasser 

 adds from 3 to 4 parts of tallow to the imbedding mixture recom- 

 mended by Kleinenberg (spermaceti 4 parts, castor oil i part), and 

 in order to be able conveniently to arrange very small objects for 

 cutting sections in any required position, he places them in the mass 

 while this is still warm, between plates of mica; the temperature 

 must never exceed 45^0. After cooling the mica plates may be 

 readily separated from the mass, which has the form of a thin sheet, 

 and contains the object; it may be then fixed with heated pins in the 

 desired position upon a block of a substance not easily melted. — 

 Roy. Mic. Jour. 



Vertical Illuminator for Examining Histological Ele- 

 ments. — Dr. E. Van Ermengem commends the vertical illuminator 

 for the illumination of such of the histological elements as can be 

 mounted on the cover-glass dry. " Blood corpuscles present an ex- 

 traordinary appearance, their color a lively red, their relief very ap- 

 preciable, and the slightest inequalities on their surface clearly visi- 

 ble." Good results had also been obtained in the examination of 

 semen, mucus, pus, and liquids containing bacteria, etc.; also of the 

 minute structure of muscles and nerve fibres. — Belg. Mic. Soc. 



