64 
ARMOUR AND ITS ATTACK BY ORDNANCE, 
rending strain well, as seems to be tbe case with all good nickel plates. 
It would form a grand shield for inland fortification. 
Fig. 12. 
Harvey On July g3rd, 1892, a remarkable advance in the manufacture of 
ck i 892 ! ateS armour by the Bethlehem Company was shown in the proof of two 
Harvey nickel steel plates. The first of these was tested at Indian 
Head 1 by the U.S. officers, not as in previous trials by four rounds 
i See “ Engineer,” August 19th, 1892. 
