ARMOUR AND ITS ATTACK BY ORDNANCE. 
167 
the heads lodging and bodies rebounding. A sixth shot rebounded 
intact. The penetrations were from 11 to 12 inches. There were no 
cracks. (See sketch shown in Fig. 28.) 
Fig. 28.—St. Chamond Plate. 
(4.) Ellis-Tresidder steel-faced. Five projectiles only were fired, 
the plate exhibiting a flaw of a fundamental character, and cracking 
and fracturing at the first round. The first was very hard, all the 
projectiles being broken up small with penetrations of from 4 to 6 
inches deep. Fig. 29 shows the plate after the fifth round. This part 
Fig. 29.—Ellis-Tresidder Plate. 
