Juxe, 1910. Meteorite Studies III — Farrington. 175 



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 enlarged in Fig. 1. They are 

 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 taenite, 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 taenite 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 ^-inch drill to a depth of 2^ 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: 



Fe 9 1 . 63 



Ni :.... 7-33 



Co o. 73 



Cu tr. 



S o .00 



P o . 20 



Si 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 



