PL ! 
BLOCK HOUSE FORT, 
CO SPORT. 
18 0 6 
FIG.I. 
U-- /o'o". ---< 
PLAN 
CLIFF END FORT 
ISLE of W I CHT 
FIG 111. 
PLAN 
FIG.IV. 
TRANSVERSE SECT/OAf OF F/C./. 
TRANSVERSE SECTION OF F/O /// 
FORT SUMTER 
AMERICAN 
FIG VI 
/Z o 
n 
PLAN 
TRANSVERSE SECT/ON 
PLAN of EM ERASURE SAME AS F/G - 6 PL. U. , 
Scale . zo F? to an mcL . 
!0 5 p IO zo 3© 
50 FEE1 
