COLTS SUBMARINE FORTIFICA-


TION.
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Mr. Colt will be ready, in few days, to
test the practical utility Of his submarine bat
terry. The scene Of the exhibition will be in
the Eastern Branch of the Potomac river. near
the Washington navy-yard. A series of sub
marine experiments have been made, by order
Of Congress. under the direction of the Sec
'etary Of the Navy, and all that has been re-
qured has been accomplished, excepting the
destruction of vessel while in motion, line
accomplishment Of which Is now abou, to be
undertaken.


der way, with full press of canvass. and left
to her late, with her head directed towards the
uavy-yard. Mr. Colt will be in position be-
,ond The reach Of the supposed enetny's shot,
aud will blow her up before her projec,iIes
could take effect.-Glvbe.