Daily American telegraph., 1852-10-09
Protection from Lightning,

vHE undersigned, being the duly appointed Agent Of
NNeRoD MANurAcroEr Covington Kentucky, begs offer
these superior Rods Spiral twisted Carbonized Anneaed
combined in their thus rendering them equal
to copper conductors They in enet lengths, with
new style Of metallic paented attachmsns for brick or
frame buildings ALSO glass isolaers of novel and nge
NOUS construction (patened0 forming lock; the whole
mounted with solid platinum silver point, (patened)
twelve inches long, surrounded at the base with three ang
lar negative magnets which possess the to an extra
ordinary extent of dschagng the opposite elements Of the
most fearful Thunderstorm and embrace the entire perfec
ton Of science to the present times the whole consu
ting the most magnificent and perfect silent conductor
presented to the public
Safety has not been compromised by anordng these ex
cent rods at such low rates. the greatest attention has
been given their construction be readily attached
The astonishing the negative in discharg
srated by the Eieetromeer when unmagnetiaed points
shown but slight results though placed under the
conditions In fact they gather and silently discharge
electricity from the atmosphere when would scarcely
suspect any being present @1#
tent hereby cautioned against laying yourselves
LIABLE by purchasing Of those who not authorized or
who substituting inferior limitations All agents duly
appointed can show their certificates Have good rods
none. CHARLES w. HEYD0N,
Washington City.
do hereby certify that have app lied various powerful
Rods and that the results these experiments convince me
that they will resist the action of atmospheric causes and
senta protection against ghtnng The reagents used
in the above experiments solution of chloride
acetic acid, acid
choric acid. With the first, there action the
metal with the several acids there very sga fact
sufficient to show that atmospheric influences would
no sensible effect.
JoHNLEcoNTE, Prof of Nat. PHI etChem.
UNIVERSITY OF Ga, October 8, 1850.
The Lightning Conductors of Mr. spratt offered to me-
well calculated to perform the Office for which they
intended Yours truly, Prof. R0BT. PETER.
LEXINGTON KY, February 20, 1885,
CHICAGO September 9, 1861
This may certify that have examined somewhat criti
cay James Spratts Patent Lightning Rods, that
of opinion that 1t is constructed principles For
combining durability cheapness and efficacy, deem il
equabsand think SUPERIOR to any other rod offered
for my inspection. Prof JAS. " 2. BLANEY.
.ts AUGUSTA, (GA) November H. 1850.
This will certify that have examined the Lightning
Rods, Metallic Points, and Isolatng Attachments, manu-
featured by Mr. Sprat and regard them constructed
conformity to the general laws Of the electric fluid
from the result of several tests TO which they submit
ted to resist for the action Of those atmospheric
most likely TO corrode them A.,MEANS,
Prof Phys &c., Emory College, Ga, and Prof Chem ana
Pharm. Medical College, Ga.
The Lightning Conductors put up by Mr. Henry Smith,
of this CITY, the plan Of Mr. Spra appear to TO be
very well devised and in point Of mechanical construction
the best have -t
IL Is to be hoped that the use of these may become
general as an important auxiliary defence against danger
which must be regarded of ordinary magnitude
which all buildings are liable. X. SILIMAN, Jr.,
- Prof Of Chem, in the University Of Louisville
LOUISVILLE, January 81 1851.
All orders left at ANDREW DUFFYS Stove Manufactory
7th street will promptly attended to; or at GEORGE
BELLS Alexandria, Va, Of King Asaph ss
mp 14-u E9t