METALLIC STAINS (IMPREGNATION METHODS). 261 



LEBKE, ibid.). Sulphides (see LAXDOIS, Centralb. f. d. tncd. Wiss., 

 1885, No. 55 ; and GIEEKE, in Zeit.f. wiss. Mile., i, 1884, p. 497). Molyb- 

 date of Ammonium (MEEKEL ; KEAUSE) (see GIEBKE, Zeit.f. wiss. Mik., 

 i, 1884, p. 96). Oxychloride of Ruthenium (NicoLLE and CANTACUZENE) 

 (see Ann. List. Pasteur, Tii, 1893, p. 331). Ruthenium Red (Kuthenium 

 Sesquichloride) (EiSEN, Zeit. f. wiss. Mik., xiv, 2, 1897, p. 200; in my 

 hands totally useless). Impregnation -with Fats, Altmann's Method 

 (see post, "Corrosion"). 



