374 Meteoric Iron of Teras and Lockport. 
The proportion of nickel and iron in the 'Texas meteorite seems 
to-vary. The mean of several analyses gives us— 
Tron, ’ ‘ é ‘ ; 90:911 
Nickel, . . ‘ ‘ praten@ 8-462 
Insoluble 
: : s 0°500 
Phosphurets, &c. : 
| 99-873 
The nickeliferous iron, or that part of the mass most rich in 
nickel, seems to have been segregated from the general mass, and 
forms the elevated lines of brilliant whiteness which appear on 
etching a polished surface of the metal 
Eramination of the Lockport Iron. 
The history of this mass was given in this Journal, Ist Series, 
xlviii, 390, and also a preliniinary analysis by the late D. Olmsted, 
Jr. For the sake of comparison, we again introduce the figure, 
showing its crystalline structure, and the white and yellow pytee 
which it contains. 
A quantity of this iron in small fragments was dissolved in 
hydrochloric acid, with the aid ofa gentle heat; the solution 
easily and rapidly effected, and the gas given off, being 
passed through a solution of acetate of lead, was found to con- 
