PLATE 8.
Ditch, Glacis, Parapet, and Trench.
Field-works.
Star Fort.
Bastioned Fort.
Field-works.
MAGAZINE.
Cremaillere.
Shoulder Caponniere.
Plan of
MAGAZINE
ESCARP GALLERY
Lunette (Defence of Bridge.)
GUN ‘EN BARBETTE’ ON STRAIGHT PARAPET.
The Excavations supply Earth for the Gun Bank and Banquettes in front of them: the earth for ordinary Parapet in front of Crest comes from Ditch.
Keep.
Splinter-proof.
Gun Bank.
Keep.
Traverse.
Field Casemate.