150 BULLETIN 94, UNITED STATES NATIONAL MUSEUM. 



Reference. — L. H. Borgstiom, Trans. Roy. Astr. Soc. Canada, 

 1904, p. 69. 



SHEEGOTTY, BEHAR, BENGAL, INDIA. No. 321. 



Stone, She. Fragment with crust, weighing 286 grams, from a 

 mass weighing 4.5 kilograms, or 10 pounds 6 ounces, which fell on 

 August 26, 1865. This stone belongs to a rare group, consisting essen- 

 tially of pyroxene and maskelynite, with accessory magnetite. The 

 chemical composition as given by Tschermak is as follows : 



Per cent. 



Silica (SiOs) 50.21 



Alumina (AI2O3) 5.90 



Ferrous oxide (FeO) 17.59 



Magnesia (MgO) 10.00 



Lime (CaO) 10.41 



Soda (Na^O) 1.28 



Potash (K2O) .57 



Magnetite (FeO, Fe^Oa) 4.57 



100. 53 

 Reference.— Qi. Tschermak, Min. Mitth., vol. 2, 1872, p. 87. 



SHINGLE SPRINGS, ELDORADO COUNTY, CALIFORNIA. No. 103. 



Iron, Dsh. Weight, 32.4 grams. Date of fall unknown; found 

 1869-70. Original weight, 38.5 kilogi-ams (85 pounds). This iron 

 has been described and analyzed, with somewhat variable results, by 

 C. U. Shepard, C. T. Jackson, and B. Silliman. Silliman's analysis 

 follows : 



Per cent. 



Iron (Fe) 81.48 



Nickel (Ni) 17.173 



Cobalt (Co) .604 



Aluminum (Al) .088 



Chromium (Cr) .020 



Magnesium (Mg) .010 



Calcium (Ca) .103 



Carbon (C) .071 



Silicon (Si) .032 



Phosphorus (P) .308 



Sulphur (S) .012 



Potassium (K) .026 



99. 987 



Specific gravity, 7.875. 



References.— Q>. U. Shepard, Amer. Joum. Sci., vol. 3, 1872, p. 438. 

 C. T. Jackson, Amer. Journ. Sci., vol. 4, 1872, p. 495. B. Silliman, 

 Amer. Journ. Sci., vol. 6, 1873, p. 18. 



