$18 Intelligence and Miscellaneous Articles. 



Hydrochlorate of Ethylamide. — I have prepared this substance 

 both with cj'anic and with cyanuric aether. It dissolves readily in 

 absolute alcohol, and crystallizes in laminae; it melts below 212°, 

 and solidifies on cooling into a crystalline mass. When distilled 

 with burnt lime, it gives ofF ethylamide in the form of an excessively 

 caustic liquid, which diffuses a strong odour of ammonia. This 

 liquid precipitates all the metallic salts, and even the salts of mag- 

 nesia. In solutions of salts of copper it at first forms a blue preci- 

 pitate, which it afterwards redissolves, forming an azure-blue liquid ; 

 it produces a green precipitate in salts of nickel, which however is 

 not redissolved, as is the case with ammonia. I ascertained that 

 the liquid did not contain a trace of ammonia, by saturating it with 

 hydrochloric acid ; the residue, evaporated to dryness, dissolved en- 

 tirely in absolute alcohol, and formed with chloride of platinum a 

 double salt, the analysis of which will be found below. 



The composition of the hydrochlorate of ethylamide is represented 

 by the formula CIH, C^ W N. Analysis gave— 



Carbon 28-9 29-4 4 = 24- 29*4 



Hydrogen 9-9 9-9 8 8 9-8 



' Chlorine 43-7 .. 1 35-5 43-6 



Nitrogen 17*5 .. 1 14 17*2 



Hydrochlorate of Ethylamide and Chloride of Platinum — golden 

 scales, soluble in water. They gave on analysis — 



Carbon 9-5 4 = 24 9'5 



Hydrogen 3-2 8 8 3*2 



Chlorine 42-0 3 106*5 42-4 



Nitrogen 1 14 



Platinum 39*0 1 98*6 39-2 



I hope soon to give a complete history of these alkalies. — Comptes 

 Pendus, Feb. 12. 



ON THE EXISTENCE OF MERCURY IN THE TYROL. 

 BY M. H. ROSE. 



M. Weidenbusch, in analysing in the author's laboratory a speci- 

 men of tender gray copper ore, stated to be from Schwarz in the 

 Tyrol, found it to contain a notable quantity of mercury, amounting 

 to 15'5 per cent. This gray copper is mixed with quartz and sul- 

 phuret of copper. Its powder is almost black, and has a specific 

 gravity of 5" 1075 ; when heated in a flask, it yields a little metallic 

 mercury with a light reddish-brown sublimate. If it be mixed with 

 carbonate of soda and heated, a larger quantity of mercury is obtained. 

 It contains also zinc, iron, antimony and sulphur, and traces of 

 arsenic and silver. These substances exist in it in the same pro- 

 portions as in other gray copper ores. A crystallized gray copper, 

 also stated to be from Schwarz in the Tyrol, did not contain any 

 mercury. — L'/ws^iVm^ Fevrier 21, 1849. 



