66 ROCHESTER ACADEMY OF SCIEN'CE. 



The exterior of the mass shows no sharp, distinct pittings, althougli 

 having- several shallow depressions that appear to ha\e been prior to 

 the oxidation which has largely covered the surface and which has 

 cjuite destroyed any trace of outer crust or skin, if such ever existed. 



The present color of the mass is a dull, reddish brown, with 

 patches of brighter iron showing here and there. By slicing the mass 

 into a number of section^, the surfaces of which are about one foot by 

 one foot four inches in diameter, there were revealed troilite nodules, 

 few in number and of small size (from 4 to 9 mm. in diameter), but which 

 lacked the border of schreibersite that so prominendy surrounds these 

 nodules in the majority of irons. 



The Widmaimstiiten figures are brought out, by etching, sharp 

 and clear, and are of very even character and size throughout the entire 

 mass. They are typically octohedral. On the numerous plessite 

 patches the alternating taenite and kamacite blades (Laphamite mark- 

 ings) are well developed, the taenite standing out prominently in relief. 



The chemical composition of this meteorite has been determined 

 by J. Edward Whitfield. His analysis is as follows: 



Metallic Iron --.--.. 91.580 



Nickel ------- 7.980 



" Cobalt ------- 0.290 



Silicon -------- .023 



Phosphorus ------- 0.200 



Sulphur -------- trace 



Carbon .--.---- none 



Specific gravity 7.756. 



The main part of this great mass, weighing 106.56 kilos, has 

 taken its final position in the Ward-Coonley Meteorite Collection, now 

 on deposit in the American Museum of Natural History, New York 

 City. 



