88 



NEW YORK STATE MUSEUM 



CRUSHING TEST MADE UNDER THE SUPERVISION OF THE ASSISTANT 

 ENGINEER EMPLOYED IN TESTING MATERIAL FOR THE PEDESTAL 

 OF THE STATUE OF " LIBERTY ENLIGHTENING THE WORLD," 

 AP. 20, 1884 



Dimensions 



1st cube, 3 in. x 2.936 in. x 2.786 in. = 8.18 sq. in. 

 2d " 3 in. x 2.77 in. x 2.776 in. = 7.699 " 

 3d " 3 in. x 2.888 in. x 2.802 in. = 8.092 " 

 No. 1 bore a strain of 103,700 lb before crushing on its quarry 

 bed 



No. 2 bore a strain of 103,600 lb before crushing on its quarry 

 bed 



No. 3 bore a strain of 98,3-10 lb before crushing not on its quarry 

 bed 



The 1st stood a strain of 12,677 lb to the sq. in. 

 " 2d " 13,472 " 



" 3d " 12,152.7 



ANALYSIS MADE BY W. E. GIFFORD, 



CHEMIST, 54 PINE ST. NEW YORK 



Silica 



77.56 



Alumina 



10.65 



Oxid of iron 



4.59 



Oxid of manganese 



.09 



Lime 



.34 



Magnesia 



1.22 



Potassa 



2.15 



Soda 



.9 



Water 



1.93 



Undetermined matter and loss 



.57 



100 



The strata are horizontal and the situation of the quarry is 

 such that the drainage is natural. The quarry face is 1000 feet 

 long in a north and south direction and w being worked at 

 various points. The stripping is carried on during the winter 

 season and is done by blasting. The earth is carted away by 

 wagon, and the rock is piled up east of the face by the derrick. 



