398 MEMOIRS NATIONAL ACADEMY OF SCIENCES, VOL. XIII. 



The mineral portion was divided into: 



ITroilite Fe(Ni)S 6. 70 (with NiS=0.62) 



Soluble in HCl| silicates 48 85 



Insoluble in HCl, including chromite 43. 97 



Water... 1.14 



100. 66 

 The analyses of the soluble and insoluble portions gave further: 



Soluble in HCl. Insoluble in HCl. 



SiO 2 19.70 40.33 24.11 54.83 



A1 2 O 3 0.25 0.51 2.12 4.82 



FeO 10.42 21.33 3.80 8.64 



MgO 17.17 35.15 10.80 24.56 



CaO 0.81 1.66 1.47 3.34 



Na-jO 0.16 0.33 0.87 1.98 



K 2 0.02 0.04 0.05 0.12 



P 2 5 0.32 0.65 



Chromite... 0.75 1.71 



48.85 100.00 43.97 100.00 



Specific gravity, 3.66. 



The molecular ratio of the silica to bases in the soluble portion is 1 : 1.72, so that besides the olivine the glassy 

 portion is probably here included. The composition of the insoluble part implies that it is made up largely of bronzite 

 with a little plagioclase. Among the stones in the Yale College collection that from Chantonnay seems to bear the 

 closest resemblance to this new stone. 



Brezina 2 classed the meteorite as a brecciated gray chondrite and remarked that this stone 

 has many white chondri in a gray and white fine groundmass. 



The meteorite is somewhat distributed, but the Yale collection possesses the largest amount, 

 834 grams. 



BIBLIOGRAPHY. 



1. 1886: DANA and PENFIELD. On two hitherto undescribed meteoric stones. 1. Meteorite from Utah. Amer. 



Journ. Sci., 3d ser., vol. 32, pp. 226-229. (Analysis by Penfield.) 



2. 1895: BREZINA. Wiener Sammlung, p. 251. 



SALT RIVER. 



Twenty miles below Louisville, Kentucky. 



Latitude 37 58' N.; longitude 85 38' W. 



Iron. Finest octahedrite (Off) of Brezina; Braunite (type 3), of Meunier. 



Found ?; described, 1850. 



Weight, 4 kgs. (8 Ibs.). 



The first account of this meteorite was given by B. Silliman, jr., 1 as follows: 



This iron was found by Mr. Jacob Walters, of Louisville, on Salt Kiver, a tributary of the Ohio, about 20 miles 

 below Louisville, Kentucky. The mass which Professor Silliman exhibited weighed about 8 pounds when it came 

 into his hands. It had been heated in a forge by its original proprietor, to remove a portion, and, in this process, the 

 original form is somewhat defaced. Nothing is known of the time and of its fall. Iron of the same mass is said to be 

 in the hands of some person whose name has not yet reached me. 



The meteoric character of the mass is apparent from its peculiar crystalline structure the hard external crust 

 the masses of magnetic pyrites which are scattered in large rounded nodules through it; but especially by its chemical 

 constitution, as is seen in the following analysis, made under my direction by Mr. W. H. Brewer, of the analytical 

 laboratory in Yale: 



Eight grams were dissolved in HCl, NO,H added, filtered from the insoluble part, the filtrate divided in six parts, 

 four containing each 1 gram in solution, the other two containing each 2 grams. Iron and nickel were determined 

 in each of the first four; the other two tested for Al, Mg, and Co. The nickel was separated from the iron by means 

 of succinate of ammonia. 



Iron 90.23 90.51 91.07 91.14 



Nickel 9.68 9.05 9.68 9.05 



Magnesium and sodium trace trace 



Insoluble... .26 .26 .26 .26 



100.17 99.82 101.01 100.45 



The amount of insoluble matter obtained from the 8 gms. was 0.21 gr., which, after long burning, weighed 0.16 

 gr. The loss was assumed as carbon. The residue, fused with carb. soda, gave traces of silica and iron, very distinct, 



