1890. HOWELL—DESCRIPTION OF NEW METEORITES. 8 
9 9 
The Widmanstatten figures are brought out with remarkable quick- 
ness on the application of very dilute acid, and are surpassed in beauty 
by no iron with which I am familiar. These are beautifully shown in 
plate to, which is printed directly from a deeply etched section. 
Where the pleissite is most abundant they resemble somewhat the 
markings on the Trenton and Mumfreesboro irons, but more closely 
those of the Descubradora. The lines of kamesite are narrower, 
however, than in any of these irons, and the inclosed figures smaller 
and more elongated, being in many parts a mere thread 5 to 8 m. m. 
in length ; but in this respect different parts of the same section vary 
greatly, as will be seen by an examination of the plate. 
Some of the inclosed figures are beautifully marked with the fine 
lines first noted by Dr. J. Lawrence Smith on the Trenton iron, and 
called by him Laphamite markings. These mostly disappear when the 
iron is etched deeply, and consequently do not appear on the plate. 
The analysis of this and the following iron have been kindly 
furnished by Mr. L. G. Eakins of the U. S. Geological Survey, through 
the courtesy of Prof. F. W. Clarke, chief chemist : 
ANALYSIS OF THE HAMILTON Co. METEORITE, By L. G. EaKINs. 
Fists SRE A EOC OBECe OO ee eee 86.54 
INR eye cee eyes ye Seek tec hi preter es 12.77 
Co a omereciid BolT a oem 63 
CUS te Ge ca ge aa 02 
ER Sane a Car gy ALO SRR .16 
Dail Gaile OOD. St ae ie eaee +03 
Ore cones ene Sa iI 
Specific gravity 7.95 at 27°. 100,26 
THE PUQUIOS METEORITE. 
This iron was purchased by Prof. Ward trom the wife of Enrique 
Ravenna, at Copiapo, Chili, April 26, 1889. According to Sefiora 
Rayenna’s statement it was found by her husband four or five years 
before, probably in 1885, near Puquios, and had been kept by them 
until secured for the Ward & Howell collection. 
The iron reached us in an absolutely perfect condition; it had 
apparently lain for a considerable time half buried in the soil with its 
upper surface exposed to the weather and drifting sand, which com- 
bined to bring out the structure of the iron without oxidation, making 
an exceedingly interesting and attractive object. 
The general form of the meteorite is such as might result from the 
wearing away of a rhombic prism, and is perfectly shown in the accom- 
