Page:Encyclopædia Britannica, Ninth Edition, v. 9.djvu/477

VOL . IX. FORTIFI CATION. PLATE VJIL COAST HATTEltY OPEN BATTERY SHIELD ARMGUH BOLT MANTLET FOR GfTTf SHIELDS -^X^X^<>J^^^^^>^^^^^^^^ Elevation ENCYCLOPEDIA BRITAMHICA, NINTH tDHION.