70 BULLETIN 94, UNITED STATES NATIONAL MUSEUM. 



The 12-poiind piece gift of Mrs, Coonley-Ward. 

 Reference. — Howard and Davison, Amer. Journ. Sci., vol. 22, 1906, 

 p. 55. 



ESTHERVILLE, EMMET COUNTY, IOWA. Nos. 12-15, 38, 425. 



Stony-iron, M. Forty- five nodular pieces weighing ail together 

 478 grams ; one of these. No. 13, weighing 82 grams, the original speci- 

 men examined by Dr. J. L. Smith. Total weight of known material, 

 337 kilograms. Fall occurred about 5 p. m. on May 10, 1879, under a 

 clear sky. In some places the meteorite was plainly visible, looking 

 like a ball of fire, with a long train of vapor or cloud of fire behind it. 

 One observer saw it at a distance of 100 miles from where it fell. The 

 sounds produced were described as terrible and " indescribable," as 

 scaring cattle, and terrifying people over an area many miles in di- 

 ameter. At first these sounds were louder than that of the largest 

 artillery. These were followed by a rumbling noise, as of a train of 

 cars crossing a bridge. The concussion, when it struck the ground, 

 was sensible to many persons, and it is reported that the soil was 

 thrown into the air at the edge of a ravine where the largest masses 

 struck. There were distinctly two explosions — the first at a con- 

 siderable height, whereby several large fragments were projected to 

 different points over an area of 4 square miles. The second explosion 

 occurred just before reacliing the ground and accounts for the numer- 

 ous small fragments. The largest fragment, weighing 437 pounds, 

 embedded itself 8 feet in a stiff blue clay. In all 744 pounds, or 337 

 kilograms. The irregular structure of this meteorite makes any at- 

 tempt at mass analyses unsatisfactory, J, \i. Smith found its mineral 

 composition to be olivine, pyroxene, nickel-iron, troilite and chromite, 

 and an undetermined silicate. 



Nos. 12 to 15 gift of Mr. Charles P. Birge; No, 425 from the G. F. 

 Barker estate. 



Reference. — J. L, Smith, Amer, Journ. Sci,, vol, 19, 1880, p, 459. 



FARMINGTON, WASHINGTON COUNTY, KANSAS. No. 352. 



Stone, Csa, Fragment, with crust on one side. Weight, 204 grams. 

 A dark gray compact stone which fell June 25, 1890; two stones 

 weighing, respectively, 4 and 80 kilograms, the larger of which pene- 

 trated the hard shaly earth to a depth of nearly 4 feet. An analysis 

 by L. G, Eakins shows the stone to consist of : 



Per cent. 



Nickel-iron 7. 7 



Troilite 5.0 



Silicates soluble in HCl (olivine) 46.0 



Silicates insoluble in HCl (mostly pyroxene) 41. 5 



100.2 



Reference. — Kunz and Weinschenk, Amer. Journ. Sci., vol. 43, 1892, 

 p. G5. 



