378 Scientific Intelligence — Chemistry. 
soluble in water ; and this solution colors the chloride of iron of a 
deep red, a proof that it is formed of sulpho-cyanuret of potassium. 
Fuming nitric acid decomposes this ether rapidly, producing a heat 
which extends to incandescence. In treating it with diluted acid, 
much nitrous acid is disengaged, and the liquid which remains pre- 
cipitates the salts of barytes. Mixed with concentrated sulphuric 
acid, it loses its transparency ; and when the mixture is warmed, 
sulphurous acid is disengaged, and the liquid becomes black. 
Sulpho-cyanic ether absorbs chlorine in great quantity, without 
changing its form. If a little water be added, and chlorme be still 
introduced, a fresh quantity is absorbed ; the odor of chloride of sul- 
phur disappears, and a strong and penetrating odor of chloride of 
cyanogen ensues ; the liquor then has a very acid taste, which final- 
ly becomes caustic ; it precipitates barytic salts. 
Iodine dissolves without difficulty in this ether, giving it a deep 
brownish red color, but does not decompose it; for water agitated 
with the solution, does not redden litmus; caustic potash removes 
the iodine imniediately, and the ether separates with a white color, 
and with its peculiar odor. ao 
Sulphur is equally soluble, and even in all proportions, at an ele- 
vated temperature ; but the solution scarcely begins to cool, when 2 
part of the sulphur separates, in the form of a yellow oil. When en- 
tirely cold, it sets into a radiated mass, which, in a few days is con- 
verted into large crystals, which are no other than sulphur. Phos- 
phorus can, with the aid of heat, be made to dissolve in it in consid- 
erable proportion, and when cool it becomes crystalline. 
’ From the properties above described, it may be inferred that this 
ether is a compound of sulphuret of cyanogen, with earburetted hy- 
drogen ; an opinion which is strengthened ‘by the fact, that in pre- 
paring it, sulphurous acid is constantly formed. It is not then at the 
expense of the water of the alechol, that the potassium of the sulpho- 
cyanuret of potassium become oxidized, but at the expense of the 
sulphurous acid.—.Ann. de Chim. Juin, 1829. ion Sseiall 
_.9. Pure Milk.—In a valuable essay on the milk sold in Paris, by 
M. Barrevt, the following facts are stated : ics 
By the extension of the use of coffee, (café au lait) the quantity of 
milk now consumed is, at least double that. which was used eighteen 
twent 
tut the number of milch cows in the vicinity of the city has, not 
sed in any thing like the same proportion. 
