Occasional Papers ..., Τεύχη 20-40

6-inch howitzer ammunition angle Army artillery azimuth Battalion Battalion of Engineers battery blindages breastwork bridge cable canal canaux Capt casemate chart Chief of Engineers command common shrapnel Company concrete connection construction Corps of Engineers defense detachment direction distance duty earth electric elevation emplacements enemy Engineer Department ENGINEER SCHOOL feet field gun fire flank Fort Monroe fortifications front fuze H. E. shell harbors hits hoist inches infantry July June Kingchau Lake Survey layer Lieut light loading platform located loophole lunette magazine ment meridian Mimeo Mimeograph mortar mounted necessary observations officers Ordnance Department overhead cover parapet placed Plates polyconic projection ponton Port Arthur position projectiles range rear Redoubt rivers sazhens seacoast searchlight Sergeant shrapnel slope station superior slope surface target telautograph thick tion traverses trench triangulation trolley trolley rail turret velocity walls West Point Willets Point wire yards