CII KM ISTKV <>F TIIK I'TOMAIXKS. 259 



liquor from (lie gadininc platinoohlorkfa was treated with 

 hydrogen sulphide to remove the |ilatinuni, and the aque- 

 ous filtrate on distillation with potassium hydrate gave 

 triethylamine. 



(iadininc (from (iadiis callarias, haddock) in small doses 

 does not appear to he poisonous; larger doses (0.5-1 gramme) 

 are decidedly toxic and may kill guinea-pigs. The formula 

 of the free IKISC as deduced from the analysis of the platino- 

 chloride may !>< either C 7 H !7 N(), or C 7 II 18 NO, OIL 



The IIvi)i;ocML<)i:ii)K, C-H^NO^.IICI, as obtained by 

 the decomposition of the platinochloride with hydrogen 

 sulphide, erystalli/es under the desiccator in thick, colorless 

 needles, which are easily soluble in water; insoluble in 

 alcohol. It forms no combination with gold chloride, but 

 does give crystalline precipitates with phosphomolybdie 

 acid, phosphotungstic acid, and picric acid. 



The PLATINOCHLORIDE, (C 7 H 17 N() 2 .HCl),PtCl 4 (Pt = 

 27.68 percent.), is at first quite soluble, and ou standing over 

 a desiccator it crystallizes in golden-yellow plates, which, 

 when once formed, are again difficultly soluble in water. 

 It can be recrystallized from hot water. It melts at 214. 



TYPHOTOXINE, C 7 n, 7 NO 2 . This base was named thus 

 by JiiMKtJKi: in 1885 (III., 86), and is regarded by him as 

 the specific toxic product of the activity of KocH-E BERTH'S 

 typhoid bacillus. It is, however, probable that, as in the 

 OM6 <f tetanus, there are basic and other products formed, 

 lie obtained it by cultivating the bacillus on beef-broth for 

 eight to fourteen days at the temperature .'>7.5 .'JS. The 

 nature of the soil on which it grows has a great deal to do 

 with the formation of the poison. An especially important 

 factor is the temperature: for BI;IE<;EI: has observed that 

 no poison was produced in one case where the temperature 

 remained by accident at .'i9 for twenty-four hours. In 

 such cn-e- creatiiie is present in quantity, whereas otherwise 

 the reverse is the rule. 



In the process of extraction it occurs in the mercuric 

 chloride precipitate, and from this it is obtained, after the 

 removal of the mercury by hydrogen sulphide, as an easily 



