THE 
AMERICAN GEOLOGIST 
Vol. VIII. AUGUST, 1891. No. 2. 
THE RECORDED METEORITES OF IOWA, WITH 
SPECIAL MENTION OF THE LAST, OR 
WINNEBAGO CO., METEORITE. 
Joseph Torrey, Cambridge, Mass.. and E. H. Barbuur. Giiimell, Iowa. 
It is noteworthy and indeed a remarkable fact that within forty 
odd years four meteorites of more than ordinary interest, — viz., 
the Linn Co., Iowa Co., Emmet Co., and Winnebago Co., met- 
eorites, — have been observed to fall in this state. The first, 
second and fourth of these belong to the ' ' stone " class of aerolites, 
and the third to the " iron " group. 
I. The Linn Co. Meteorite.^ 
The Linn Co. Meteorite fell in Hartford, Linn Co., at 2:45 a. 
m. , Feb. 25, 1847. The following fragments are noted, weighing, 
in pounds : 0.448, 0.369, 0.007, besides other small fragments. 
They all have the characteristic dull black pitted surface. The 
color of the interior is a light gray filled with grains of meteoric 
iron and intersected by cracks filled with crust. The small amount 
of olivine is quite remarkable. 
Analysis of the stony part gave 
Silica GO. 16 per cent. 
Ferrous oxide 23. .50 
Magnesia 11.20 
Magnetic pyrite 4.60 
Soda and potash 30 
99.83 
Analysis of the metal gave 
Nickel 86 per cent. 
Iron 14 '• " 
•From Huntington's catalogue of all Recorded Meteorites, Proc. Am. 
Acad, of Arts and Sci., 1887, pp. 37, 110. 
