ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 



341 



Bolutions such as nitrate of silver, and none of the liquid is lost, while the 

 whole apparatus is easily cleaned by pumping a stream of warm water 

 through it. 



Ftg. 92. 



Nitrite of Amyl for Fine Injections.* — Messrs. B. L. Oviatt and E. H. 

 Sargent suggest the employment of amyl nitrite for fine injections, and 

 point out three methods for its exhibition. 1. A mixture of ether and 

 amyl nitrite may be poured into the box in which the animal is killed, and 

 when quite anaesthetized a sponge moistened with pure nitrite may be 

 held over the animal's nose until it is quite dead. This procedure is not 

 recommended. 2. After being anaesthetized with ether, the nitrite may be 

 held over the nose, or the animal may be removed from the box, and after 

 the sponge is applied the head wrapped up in a rubber sheet. 3. Injection 

 of a small amount of nitrite in salt solution into the vessels directly after 

 death by either of the foregoing methods. In any case it is advisable to 

 add a little nitrite to the mass just before using. The relaxing power is so 

 great, that the largest arteries will be found collapsed. 



Dekhuyzen, M. C. — De aard van het proces der Kleiiriiig van mikroskopisclie prae- 

 paraten. (The nature of the proces3 of staining microscopical preparations.) 



Nederl. Tijdschr. v. Geneesk., 1886, pp. 585-8, 



Geay, N. M. — A Modification of Weigert's Method of staining Tissues of the Central 



Nervous System. [Fost.'] Amer. Mon. Micr. Journ., VIII. (1887) pp. 31-2, 



from Med. News, 1886, Nov. 6. 

 Grigoejew, a. — [On Ehrlich's Staining of Micro-organisms.] 



[In Eussian.] Busskaja Medecina, 1886, No. 42. 



Hankin, E. H. — Some new Methods of using the Aniline Dyes for staining Bacteria. 

 \_Post.'] Quart. Journ. Micr. Sci., XXVII. (1887) pp. 401-11. 



KiJHNE, H. — Zur Farhetechnik. (On staining technique.) 



Zeitschr.f. Eygeine, I. (1887) pp. 553-6. 

 S., R. J. — Staining Fluid. 



[Carmine, 10 grus. ; strong liquid ammonia, 1/2 drachm ; Price's glycerin, 2 oz. ; 

 distilled water, 2 oz. ; alcohol, 1/2 oz.]. 



Scientif. Enquirer, II. (1887) p. 30. 



* St. Louis Med. and Surg. Journ., li. (1886) pp. 207-8. 



