CIIKMISTKY <>F THE I' T < > M Al \ KS . 2. r )l 



precipitate, which is soluble in 6X0618, Imt on rubbing the 

 sides of tin- tiilx- with a gla-ss rod it reappears as yellow 

 needles. This is said to IK? a characteric test (BuiK<;i:u, 



Th- An.-.K III.OIMI.K, C 5 II 12 NO,.Cl.AuC] 3 (An = 4:5. IL> 

 per cent.), forms magnificent cholesterin-like plates, and is 

 easilv soluble (HuiK(JKlj). The aurochloride from sngar- 

 beet is said to crystallize in needles or plates, and to l>e 

 difficultly soluble in cold water (SCHKIHLKK, LIIM'.MANN). 

 The double salt of the ptomaine melts at 209, and in this 

 it coincides with that obtained from beet-sugar, as well as 

 with that of the synthetically prepared base (BRIBGBfi). 

 The platinochloride is yellow and crystalline. 



]Setaine is not poisonous. 



MUSCAKINE, CJI IS NO 8 = CJIjsNO, + 11,0, the well- 

 known toxic principle which SOBMOEUBBBBG obtaiiunl 

 from poisonous mushroom (Agaricus muscarius), has been 

 obtained also by BKIKGER in 1885 (I., 48) from haddock 

 which had been allowed to decompose for five days. The 

 process by which its isolation was effected is described on 

 page 258. This base is specially interesting, because of the 

 relation it bears to choline, for DCHMIEDEBEBG has shown 

 that it is formed when choline, or, better still, the platino- 

 chloride, is oxidized by concentrated nitric acid. It is 

 barely possible that BiUKCKif's base is distinct from 

 BCHMIEDEBEBG'S j nevertheless, it closely resembles it and 

 apparently is identical. 



The CHLORIDE, C 5 II U NO 2 .C1, is obtained on the decom- 

 position of the platinoehloride with hydrogen sulphide, as 

 a syrupy residue, which, under the desiccator, shows a 

 tendency to gradually crystalli/e. It is deliquescent 

 (HAUNACK). 



The PLATINOCHLOBIDB, ((\H u NO 4 .CI),PtCl 4 (Pt = 



:>().( >s IMT cent.), forms as a crystalline deposit of octahedra, 

 which are difficultly soluble in water. They lose their 

 water of crystalli/ation (2II./)) only by means of strong 

 heating. 



The AIM:O< iu.m;ii>K, ( 1 6 II 1 ,N()..( 1 l.Aii('l 3 . erystalli/es 



