330 C. U. Shepard on New Localities of Meteoric Iron. 
r wet with a solution of acetate of lead, when held over 
the solution. A mineral resembling graphite rapidly separates as 
the solution goes on, and floats through the liquid in small shin- 
ing black scales of perfectly uniform size. When no heat is em- 
ployed in the process, their form is very definite, and on being 
washed and dried, they gave in one instance a specific gravity of 
3°30. Deflagrated with nitrate of potassa they gave decided traces 
of titanic and silicic acids. Where heat and aqna regia were em- 
ployed in acting upon the iron, the graphite-like substance was 
more acted upon, and had a specific gravity of but 220. This 
when deflagrated with nitre also afforded traces of silicic and 
titanic acids. The proportion of the heavy graphite in the iron, 
obtained in the first process was 4°5 p. c.; but by the latter pro- 
cess it was 3°3 p. c. 
A portion of the iron was heated with hydrochloric acid, and 
the solution saturated with sulphuretted hydrogen. A yellowish 
brown precipitate was formed. It was separated and treated with 
concentrated nitric acid. A heavy, white powder was formed, 
which was not reduced in quantity by further. digestion in the 
acid. It was separated, washed, dried and ignited, and amounted 
to 0°4 gr. or 5°50 gers. of the iron. : 
A portion of the nitric acid solution, on being treated with 
sulphuretted hydrogen, gave a brown precipitate of sul phuret of 
molybdenum. Another portion gave with tannic acid, a yellow 
tions of the presence of phosphorus and of chromium, wheu sub- 
jected to the usual tests for these elements; but does not conlain 
nickel, cobalt, magnesium or calcium. Besides the specular 100 
of the crust, therefore, it contains, 
Iron, - - - = . ‘ -- 95576 
Carbon, . - - " . if 3:30 
Chromium, - - - . . 
Tin, - - a i : = 1:125 
Molybdenum, - - = =- 
Silicon, - - 3 - 3 
Titanium, - - = Z y 
Phosphorus, - - - - nage 
Sulphur, = - «= Pana 
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