JUNE, 1910. METEORITE StupiEs III — FARRINGTON. D5 
and polishes well. Etching is easily performed with dilute nitric 
acid, the figures coming out very quickly. In fact, they are dimly 
outlined on surfaces which have been simply polished. The figures 
seen on etching the fragments are shown enlargedin Fig. 1. Theyare 
_ octahedral in character with long, straight, swollen, and little grouped 
bands. The fields are few in number and subordinate. They vary 
in size and have the forms of triangles, rhombs, and parallelograms. 
They are filled with dark-gray plessite, much darker in color than the 
kamacite. This plessite may be quite uninterrupted or it may con- 
tain networks of tznite, seen over the whole field or only in portions 
of it. The kamacite of one of the fragments etched shows well- 
marked hatching, the lines running in three directions, two at right 
angles and one diagonally. The directions of these lines are as a rule 
different for the different bands, each band having its own system 
but in one group of bands 8 mm. wide but subdivided by little tongues 
of tenite into smaller bands about 1 mm. in width, the orientation 
of the hatching lines is the same throughout. 
While one of the fragments exhibits hatched kamacite the other 
exhibits only spotted kamacite.' The spots of the latter are about 
i mm. in diameter, and of uniform size. It is possible that the por- 
tion of the meteorite showing spotted kamacite was more highly heated 
and the hatched kamacite thus metamorphosed to spotted kamacite. 
Analysis of the meteorite was made by H. W. Nichols from ma- 
terial obtained by boring with a 7%-inch drill to a depth of 2/4 inches. 
About 20 grams of material were thus obtained, varying in structure 
from continuous shavings an inch or more in length to fine metallic 
powder. The color of the material was iron-gray. The portions 
used for analysis were carefully sampled from the whole lot of borings. 
The analysis gave: 

ESR a ee ne 91.63 
ae a re ree: 
0 Felrtev ecco Po 4 NWS Os. pa eee oO. 73 
I SR oe a eo a tr 
MiSs SOW eee. ay elatlh ee cele loupe s Siwue e & 0.00 
ee R696 SiR niece \ a's) + Rial & ic Mele Gawe we SA 0.20 
ITE ee eS eB hak OS ent walsad ap ow Wo 0.02 
99-91 
The composition of the meteorite thus corresponds to that usual 
to the medium octahedrites. In addition to the components shown 
above careful search was also made for gold, platinum, or other rare 
metals. These were looked for in the following manner: A portion 
