277 



able to obtain saline compounds with hydrochloric and sulphuric 

 acid. It forms, however, compounds with nitrate of silver and 

 bichloride of platinum. The latter has the usual composition, 



viz. 



C 14 H 8 N 2 S 2 ,HCl,PtCL, 



Boiled with nitrate of silver, the new compound loses its sulphur, 

 which is replaced by oxygen, phenylcarbamide, C u H 8 N 2 O 2 , being 

 produced, a substance which I described many years ago. Sulpho- 

 cyanide of phenyl is acted upon by a great number of ammonias 

 with formation of bodies the composition of which is sufficiently 

 pointed out by theory. 



The mode of producing cyanate and sulphocyanide of phenyl, 

 which I have described in the preceding paragraphs, deserves some 

 notice, since the usual processes suggested by the experience in the 

 methyl-, ethyl- and amyl-series, such as distillation of sulpho- 

 phenylates with cyanates and sulphocyanides, have altogether failed 

 in producing the desired result. The same reaction may be of 

 course applied to tolylamine, cumylamine, naphthylamine, and all 

 primary monamines. 



TV. " Notes of Researches on the Poly-Ammonias." 

 No. IV. Action of Bibromide of Ethylene upon Aniline. 

 By A. W. HOFMANN, Ph.D., F.R.S. &c. Received May 

 13, 1858. 



While engaged in some experiments on the action of bibromide 

 of ethylene on ammonia, a short account of which I have lately 

 communicated to the Royal Society *, I induced Mr. Henry Bassett, 

 then working in my laboratory, to study the deportment of the same 

 bromide with aniline, a characteristic representative of the class of 

 primary monamines. In the following pages I propose to submit 

 to the Society Mr. Bassett' s observations, together with the results 

 of a series of experiments which I carried out myself after Mr. Bassett 

 by circumstances had been prevented from a further continuation of 

 the inquiry. 



A mixture of 1 volume of the bibromide of ethylene and 2 volumes 



* Proceedings of the Royal Society, vol. ix. page 150. 



