1886.] 



MICKOSOOPICAL JOUKNAL. 



15 



ekstatischer Venen. Arch, 

 pathol. Anat., liv, 137. 

 Another disciple of v. Reckling- 

 hausen. 



159. Reich. M i kroskopische 



Studien m i t Silbersalpeter- 

 losung au den Gefiissen des 

 Auges, und anderer Organe. 

 Sitzber. d. Wein. Acad., 1873. 

 Reich uses a most excellent method 

 of staining vessels with silver. He 

 first uses a cleansing injection of dis- 

 tilled water or saltpeter ^-j?o, then a 

 1 to 1% solution of silver nitrate, 

 followed after a few minutes by a 

 milk-warm gelatine injection. The 

 material is then laid in alcohol, ex- 

 posed to the light, and finally exam- 

 ed in water or glycerin. The views 

 ofv. Recklinghausen on the meaning 

 of the lines are adopted. 



160. Golgi. Sulla struttura della 



sostanza grigia del cervello. 



Communicazione preventiva. 



Gazz. med. Ital. Lomb. vSer. 



4, t. vi. 

 The silver staining is recommended 

 for central nerves. Small pieces, 

 hardened in potassium bichromate, 

 are subjected to long treatment with 

 |— I/O solution. The nerve elements 

 become black. 



161. Torquato Beisso. Del midollo 



spinale. Genova, 1873, p- 4 f. 

 Describes a method like the last. 

 Sections of the spinal marrow, hard- 

 ened in alcohol, are dipped 1-3 min- 

 utes in an alcoholic solution of silver 

 nitrate. 



163. Rouget. Memoire sur le devel- 



oppement, la structure et les 



proprietes physiologiques des 



capillaires sanguins et lympha- 



tiques. Archives de Phys., p. 



603, 1S73. 



To bring out the details, soak 3-"^ 



seconds in silver nitrate i to 750- 



1000, wash and repeat the nitrate, 



finally expose to light in glycerin. 



The preparations may be treated 3-3 



hours in a mixture of glycerin, alco- 



bol, and ammoniacal carmine. 



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Inoculation to Prevent Hy- 

 drophobia. — It is well known that 

 the investigations of Pasteur upon this 

 dreaded malady have been so promis- 

 ing of good results that already sev- 

 eral patients have applied to him for 

 inoculation with the virus he has cul- 

 tivated. Among others, two children 

 from Jersey City, \vho were bitten by 

 a mad dog not long ago, have been 

 sent to France to be treated in this way. 



Mr. Pasteur has found by a course 

 of successive inoculations of rabbits 

 with marrow of a mad dog, his experi- 

 ments extending o\^x a period of 

 three years, that the period of 

 incubation of successive inoculations 

 from rabbit to rabbit is at first fifteen 

 days, but gradually becomes less, un- 

 til seven days is the uniform period 

 of incubation. When the virus is re- 

 duced to this condition, he has been 

 able to render a dog proof against rab- 

 ies by a series of daily inoculations con- 

 ducted in a peculiar manner, using 

 the marrow of affected rabbits soaked 

 in sterilized broth for inoculation. 



In Popular Science Monthly of 

 January is a translation of an article 

 by Mr. Pasteur, read before the Paris 

 Academy of Sciences, from which 

 we take the following extract : — 



' By the application of this method 

 I had succeeded in getting fifty dogs, 

 of various ages and races, proof 

 ajjfainst rabies without bavin"- had a' 



