302 FieELp CoLumBian MusEuM—GEococy, VOL, I. 
meet at angles of 50°. The mineral is colorless inclining to a pink 
tinge. Relief and index of refraction about like that of chrysolite. 
I hope to give the mineral further investigation when a larger quantity 
is available. . | 
The metallic grains (nickel-iron and troilite) have more or less 
angular outlines and incline toward elongated forms. The nickel- 
iron and troilite are usually intimately joined, although grains of each 
mineral also occur alone. The troilite, readily recognized by its 
bronze yellow color, is more abundant than the nickel-iron. 
A few opaque grains of black color closely associated with the 
nickel-iron and troilite are probably to be referred to chromite. Be- 
sides these, translucent grains with the typical red color of chromite 
are numerous, and one observed has a square outline showing it to be 
a section either of an octahedral or cubic crystal. The chromite 
always occurs united to the other opaque minerals. The grains of 
nickel-iron and troilite often enclose grains of silicates of small size. 
On the whole the Ness County meteorite should probably be 
classed as a crystalline chondrite or Meunier’s erxlebenite, although 
its chondritic nature is somewhat doubtful. 
As is probably generally known, a number of small aerolites 
quite similar to the one here described have been found in Ness 
County. The first of these found was briefly described by Henry L. 
Ward.* Aside from this description and mention of the stones in 
one or two catalogues, no further account of them seems to have been 
published. Since Preston has suggested, however,} that the Ness 
County stones may belong to the same fall with Kansada, Jerome, 
Prairie Dog Creek and Long Island, a knowledge of them is desirable 
as a ground of investigating the suggestion. What additional facts 
I have been able to gain regarding the Ness County stones in general 
have been kindly given me by Mr. Henry L. Ward. In all at least 
twenty-five small aerolites have been found in Ness County, exclusive 
of Kansada. In weight they range, so far as Mr. Ward has been 
able to record them, from 34 to 3,467 grams, the total weight being 
17,011 grams. This does not represent the entire amount, since of 
some stones Mr. Ward was unable to obtain exact record, but at least 
this amount has been found. The majority of these, so far as their 
place of find has been recorded, have come from the neighborhood of 
Franklinville, a village about five miles south of Ness City. The 
first one described by Mr. Ward, however, came from a place nearly 
twenty miles to the east of Franklinville, the exact locality being 
eee UREN SSSI AE See LE Ee Lk MT PT ea Tr bhai = 
*Amer. Jour. of Science, 4th ser., vol. 7, p. 233. 
+Amer. Jour. of Science, 4th ser., vol. 9, p. 112. 
