86 ROCHESTER ACADEMY OF SCIENCE. 



" I find a trace of platinum in the Arispe siderite. From as care- 

 " ful a separation of schreibersite as time permitted, its percentage is 

 " 1.84. This is the mean of two closely agreeing determinations made 

 " on material caught from the sawing of small slices of the meteorite 

 " with a hack saw. Had it been practical to collect sawings from 

 ' ' larger sections which seem to have larger patches of schreibersite 

 " the percentage of that mineral would doubtless have been greater. 

 " No other meteorite with which we are acquainted shows such a pro- 

 ' ' portion of this. ' ' 



" Some black particles, picked from the centre of a troilite nodule, 

 " prove to be chromite. They are insoluble in nitric acid, and give 

 ' ' chromium rea61;ion. Cohenite appears to be present, but the material 

 " at my disposal was too scanty to permit its certain identification." 



As some chemical work in reference to the constituents of this 

 most remarkable meteorite has not at the present moment been com- 

 pleted, the results will be published at a later date. 



The largest outside surface (end-piece) together with the largest 

 section, both as described in this paper, are taking their places in the 

 Ward-Coonley Collection of Meteorites, now displayed (on deposit) 

 in the main- Geological Hall of the American Museum of Natural His- 

 tory in New York. The two pieces together weigh nearly 40 

 kilogrammes. 



THE BALD EAGLE METEORITE. 



This interesting siderite has been loaned to me for examination 

 and cutting by Prof. Wm. G. Owens, of the Bucknell University, 

 Lewisburg, Pa. Prof. Owens read a paper upon the specimen before 

 the Chemical Society of the University, and this was, the following 

 year (1892), published in Vol. 43 of the American Journal of Science. 

 From this article of Prof. Owen's I take my facts as to the finding of 

 the mass. 



Bald Eagle Mountain, on the east side of which the meteorite 

 was found, is seven miles south of Williamsport, Pa. The mountain 

 comes down to the edge of the Susquehanna river, and on the border 

 of the latter runs the Philadelphia and Erie Railroad. Numerous 

 transverse depressions occur here in the mountain-side, some of which 

 are filled with loose blocks of sandstone, large and small. "It was 

 in one of these depressions, several hundred feet from the railroad 

 track, that on or about Sept. 25, 1S91, some Italians, while getting 



