NIAGARA METEORITE 5 19 



ters, and weighed 18 grams. This fragment showed bright 

 plates of taenite on two of its cleaved faces. This feature was 

 likewise shown on a number of the smaller fragments. 



On etching the two pieces composed of the unoxidized iron, 

 its octahedral structure was strongly marked in the Widman- 

 statten figures, the kamacite plates being somewhat broad with 

 a second series of markings of hair-like lines upon them about 

 the size of the Neumann lines on the Braunau iron. 



Mr. J. M. Davison, of the Reynolds Laboratory of the Uni- 

 versity of Rochester, kindly made the analysis of this meteorite 

 for me, and found it to be composed of 



Fe - 92.67 



Ni 7-37 



CO 0.13 



100.17 

 Specific gravity 7.12. 



From its close proximity to Niagara, we will designate the 

 siderite the Niagara, Forks county, N. Dakota Meteorite. 



H. L. Preston. 



Rochester, N. Y. 



