14 



THE AMEEICAN MONTHLY 



[January, 



kapseln, mit einem Kritischen 

 Vorwort iiber die Versilber- 

 ungsmethode. Arch, path . 

 Anat., xxxvi, 2^. 



148. Schweigger-Seidel. Die 

 Behandlung der thierischen 

 Gewebe mit Argentum nitric. 

 Bericht der Sachsischen 

 Gesellschaft d . W i s s e n s c h , 

 1866, p. 329. 



These authors agree entirely with 

 V. Recklinghausen as to the signifi- 

 cance of the silver deposit. 



149. Federn. Untersuchungen uber 



die Bedeutung der Silber- 

 zeichnungen an den Capillaren 

 der Blutgefiisse. Weiner 

 Sitzber. der Acad., liii. 

 Federn has grave doubts as to the 

 results of the silver treatment. 



150. Miiller. Ilistologische Unter- 



suchungen iiber die Cornea. 



Arch, pathol. Anat., xli, no. 

 In Miiller's method silver iodide is 

 used with silver nitrate. The prep- 

 arations are first immersed in a 1% 

 solution of silver nitrate in the dark 

 for 2-3 minutes, then add a small 

 quantity of a silver iodide solution 

 made by the help of potassium 

 iodide. Move about in this, wash in 

 distilled water and expose to the 

 light for two days in a i/o solution 

 of nitrate of silver oxide. The nu- 

 cleus will remain uninjured by this 

 method. 



151. Ranvier. Journal d I'Anatomie, 



1S6S, No. 3. p. 275. 

 After the preparation is removed 

 from the silver solution it is washed 

 in distilled water and exposed to the 

 light. It is then placed in a i"n so- 

 lution of gold chloride. In order to 

 stain the nucleus use carmine solu- 

 tion in which the ammonia is neu- 

 tralized by oxalic acid. The prep- 

 arations are to be preserved in a 

 mixture of equal parts of a 5% solu- 

 tion of oxalic acid and glycerin. 



152. Legros. Note sur I'epithelium 



des vaisseaux sanguins. Journ. 

 de I'Anatomie, 1868, No. 3, 

 p. 275. 



A solution of sodium hyposulphite 

 is used to avoid the undue darkening 

 of the preparation. 

 1^3. Robinski. Recherches micro- 

 scopiques sur I'epithele et sur 

 1 e s vaisseaux lymphatiques 

 capillaires. Arch, de Physiol., 

 1869, p. 451. 

 The tissues are exposed 30 seconds 

 to the action of a silver solution of 

 0.1-0.2%'. The limiting membrane 

 of the cells is stained, not the cement 

 substance between them. Hart- 

 mann's earlier assertion (143) that 

 silver stainings are deceiving, with- 

 drawn bv authority of Hartmann 

 himself. 



1=54. Schwalbe. Untersuchungen 

 iiber die Lymphbahnen des 

 Auges und ihre Begrenzungen. 

 Arch. mikr. Anat., vi, i. 

 Schwalbe thinks the appearances 

 of the precipitate due to an albumin- 

 ous fluid flowing over the surface of 

 the membrane. Compare Auerbach 

 and Schweigger-Seidel, No's. 145 

 and 148. 



11^5. Feltz. Recherches experi- 



mentales sur le passage des 



leucocythes a travers les par- 



ois vasculaires. Journ. de 



Anat., 1870, p. 33. 



Feltz explains all silver lines as 



artificial productions such as may be 



obtained by the treatment of albumen 



or collodion films with silver. They 



mav also be seen on photographic 



paper prepared with silver salts and 



exposed to the light. 



156. Robinski. Die Kittsubstanz 



auf Reaction des Argent, ni- 

 tric. Archiv. Anat., 1871, 

 p. 184. 

 Repeats the statements made m 153. 



157. Severin. Beitrage zu der Lehre 



von den E ntzundungen . 



Dorpat, 1S71. Diss. 

 A warning against false conclus- 

 ions. Surfaces without epithelivmi 

 may show a black network. 



158. Soboroft". Untersuchungen 



iiber den Bau normaler und 



