THE DEVELOPMENT OF ARMOUR. 469 
A very different result is shown in Fig. 5, which represents a Ma ^ c s hWm 
Bethlehem 
plate. 
Fig. 5 . 
Bethlehem Harveyed nickel plate, tested on June 12th, 1894. It was 
a curved barbette plate for the Massachusetts , 12 ft. 1 in. x 8 ft. 
4* in. x 17 in., weighing about 30 \ tons. It was attacked by two 
12-in. Carpenter, 850 lbs. shot, with 1,410 and 1,853 f.s. striking 
velocity and 11,715 and 20,240 ft. tons energy and 18*0 and 25*4 in. 
penetration of iron. The first shot broke up with about 8 in. and the 
second with 11 in. penetration and one fine horizontal crack. Other 
17 and 18 in. Harvey nickel plates of Carnegie and Bethlehem were 
tested with good results. 
On June 28th at Ochta, St. Petersburg, were tested two Harveyed Russian 
plates, 8 ft. x 8 ft. x 6 in., furnished by Brown and Cammell and one tU p ro ^g S refc 
8 ft. x 8 ft. x 10 in., furnished by Brown. They were attacked by capped shot 
6-in. shot with 1,850 f.s. velocity for the 6-in. plates and 2,400 f.s. for 18941 ' 
