204 BACTERIAL POISONS. 



allii, a germ obtained from putrid onions. The base 

 (hydrochloride?) forms colorless, prismatic, microscopic, 

 very deliquescent needles, which are soluble in warm water, 

 alcohol, ether, and chloroform. It gives off a hawthorn-like 

 odor, especially when warmed. With phosphomolybdic acid 

 it yields a white; with iodine in potassium iodide and with 

 tannic acid a chestnut-colored precipitate. Nessler's solu- 

 tion produces a yellow chestnut-colored precipitate. Picric 

 acid throws down a yellow slightly soluble deposit. The 

 platinochloride, (CioH„N.HCl)2PtCl^, is yellow, crystalline, 

 and difficultly soluble in cold water and in alcohol ; soluble 

 in warm water. Gold chloride produces a thick yellow 

 precipitate soluble in water. Dilute sulphuric acid pro- 

 duces a violet-red color. The base is apparently a hydro- 

 coridine. 



A Base, CjjHgjN, was obtained by Del,6zinier (1889) 

 and is said to be the alkaloid, isolated in 1879 by Brouar- 

 DEL, which in its chemical and physiological properties was 

 described as similar to veratrine. It forms an almost color- 

 less oily fluid, which possesses a hawthorn-like odor. It 

 is very readily oxidizable and yields the veratrine-like re- 

 actions only in the presence of air. It is soluble in alcohol, 

 ether, toluene, and benzene; and forms well-defined salts 

 which are very deliquescent. It appears to be an amine, 

 and in its composition differs from cevadine by 9H2O. 

 Nothing is stated in regard to its source or method of 

 preparation. The analytical results given — C = 89.41, 

 H^7.3, N = 3.03 — correspond more to the formula 

 C34H33N. 



Ethylidenediamike (?), CjHgNj. — This base was con- 

 sidered at first by Brieger to be identical with ethylene- 

 diamine, but subsequent comparison showed this to be an 

 error. Thus, the former is poisonous and does not form 

 a gold salt, while the latter is not poisonous and does form 

 a rather difficultly soluble gold salt. Again, ethylene- 

 diamine forms a platinochloride which is almost insoluble 

 in hot water, whereas the platinum double salt of the pto- 



