Baltimore daily commercial. [volume] (Baltimore, Md.) 1865-1867, 1866-06-20

These Inventions. he assumes have occasionsd dis
oussion and cXperT eMts abroad and produced many
publications upon the ait and implements of odea-
sive and defensive warfare. Ii suggests the regp-
pointment Of the Board by the President The Beard
c2tsldtrs me tnree subjects Of iron-cad vessels,
channel ooS!Iuctt0As and torpeloes Concerning the
hrst naIneI, the Board is asked 10 SETTLE approxi-
mateiy, the char3cieT and number Of these vessels
neceSsary-aa lsnd batteries for harb0rs The Board
do not undet"ke hnal solution Cf the problem of
narpor aeiehSe, ot are afraid that upon ironclads
our method OF defence must be based, particularly
whcT5 the channels are wide and tie objects In he
protected are Of vital Importance
They consGeg it doubtful whether the d.sfrrotize
eteo OF inQderr artillery has kept pace with the ia-
velocity and hat there is danger that or more Of
suca vessels might succeed in passing between forts
M ana shore batteries and that therefore, system
OF ohstrCct!ons may be necessary to defence
They say 1t Is TO be regretted that Fort RichmCnd
n New York harbcr. and Fort Delaware in The
experiments we're rendered yalueess by ilnmediate-
~ succeedl devei0pma; IS in the mowers of artii-
ery; Ios renort says fgrther-"It is aeiicyed that
gums nave now reached their maximum limit Of
poW'r at least for naval use, aud that eyper;mcnts
are indispensable to d re-miRe the resistance of our
coHstrction for nett er t.e proraCtej cxpcriHens
III >,istaIT @ asaIsC IRON targets nor those made by
SUBJECTS being made with other objects
The question Of the efficiency OF channel obstruc-
W%S 'mG ntITI seems TO regard as still in dispute.
undertaken ty the French for instance in he road
Soaa q the Island of AIz they credit he failure to
WithoRI preliminary study and experiment
! ne B0a4d say toTpedoes were used successfully
during me ate var IN defence Of habors aud rivers
ci"a our southern coast. The most successful was
ATTAINED by sensitive percussion fuses or some sim
pie mechanism 50 arranged as to produces explosion
hy contact with the vessel passing over them Pro-
badly The most certain means Of exploding orpedocs
W9id be ny the use of Calvauic or IN ,xnetic cleo
tricity. '
ihouEh We have derived some knowl -dFe of tor
peGHes lf0n the rebels, this knowcdya is very lin
iS'd' ';eture tGcy can bo successfully cmfnyed in
c.!"hncI defe7ces series Of experiments viii be ne
G2sSaFy 10 ascertain the best of constructing
lne!n to avoid eakaget the best material for fEe and
u!elf afra cement IN connection with the battery
IN rapid currents exposed to ocean wares
The Board say: The untold wealth of cur uonu-
us Giles and the great national importance Of oar
naval establishments make it an Imperative dufy of
tne H"Vcrnnent 10 eiaCtuaily secure these State in
teTests against destruction By hostile fleot Tho
capture OF bUtone of our important narbGrs yould
involve the loss Of private and public property far
beyond the cost of all asst deences and would
prove serious dotriment TO our military and naval
power.
the tonptroller of the Treasury has decided that
an mutliated National bank notes must be sent to
me oHGes frcm which they were issued for redpnp-
ton, Then if the banks re oguize them he viii re-.
9eeH thenl. All United States notes when not de-
9e redeemed at the Treasury Department, at their
dcmption will lie in proportion