74 ROCHESTER ACADEMY OF SCIENCE. 



iron is essentially tough, although not more dense than in the 

 majority of siderites. 



The specific gravity of Bacubirito is 7.69. Its analysis has been 

 made by Prof. J. E. Whitfield, of Philadelphia, as follows : 



Iron, ------ 88.944^ 



Nickel, ----- 6.979,'^ 



Cobalt, - - - - - 0.211^ 



Sulphur, ----- 0.005^ 



Phosphorus, - - - - 0.154^ 



Silicon, ----- Trace 



We succeeded after a long, protracted effort in detaching from 

 the mass an already partly loosened piece of about ri lbs. weight. 

 This, polished and etched on one side, showing the beautiful Widman- 

 statten figures, has taken its place in the Ward-Coonley collection of 

 meteorites now on display (on deposit) in the American Museum of 

 Natural History in New York. 



