Daily American telegraph., 1852-07-02
Protection from Lightning.

ltk undersigned, being the duly appointed Agent OF
SahoD MANuYAoroRT, Coyington Kentucky begs TO oer
these superior Rods Of spawisted Carbonzed Annealed
combined In their manufacturer thus rendering them equal
TO copper as conductors They lengths with
style of metallic patented) attachm for brick or
frame buildings also, glass solaers novel and nge
nious construction patented0 forming lock; the whole
mounted with solid platinum silver point (patented)
twelve inches long, surrounded at the with three
lar negative magnets which possess the power extra
ordinary extent dschaging the opposite elements Of the
most fearful Thunderstorm and embrace the perec
ton Of science up TO the present time the whole constu
ting the magnificent and perfect silent conductor ever
SAFETY MAS not been compromised by aording these ex
ceent rods at such the greatest attention
been given their construction as TO be readily attached
The astonishing power Of the negative magnets IN dsehar
ing the Its opposite elements has been clearly demon
srated by the Eectrometer, when unmagnetzed points
have shown but slight results though placed under the
Same conditions In fact they gather and silently discharge
electricity from the atmosphere when you Woud scarcely
suspect any being present.
tent you are hereby cautioned against laying
LIABLE by purchasing Of those who not authorized or
who are substituting inferior limitations All agents duly
appointed can show their certificates Have good rods
none. CHARLES w. HEYD0N,
tia,g4ta 80 Washington City
do hereby certify that have app lied various powerful
Rods and that the results of those experiments
that they will resist the action of atmospheric causes and
thereby preserve .ne exreny icon SOnaion most es
in the above experiments solution OF chloride Of
diu common SALT acetc acid suphuric acid and hydro
choric acid. With the FIRST Llore no action the
metal with the several acis there very gh-a fact
sufficient to show that atmospheric influences would have
no sensible effect.
JOHN LECoNTE, Prof of Nat. Phil ct Chom
UNIVERSITY OF Ga, October 8, 1850
The lightning Conductors of Mr.. spra offered to me-
well calculated to perform the Office for which they
intended. Yours, truly, Prof ROBT. PETER.
LEXINGTON, KY, February 20, 1850.
CHICAGO September 8, 1850.
This may certify that have examined, somewhat crd
cally James Spratts Patent Lightning Rods and that
opinion that is constructed scientific principles For
combining durability, cheapness and efficacy, deem 1t
equal and think superior, to any other rod offered
for my inspection. Prof JAS " H. BLANEf.
AUGUSTA, (GA,) November H. 1850.
This will certify that have examined the Lightning
Rods Metallic Points, Isolating Attachments,
conformity to the general laws Of the electric ud and the
metallic compound constituting the Points, promising
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 Sc, Emory College, Ga and Prof Chem and
pharm., Medical College, Ga.
The Lightning Conductors put up by Mr. Henry NJ Smith,
this city, the plan Of MIR Sprat appear to TO be
very well devised; and in point Of mechanical construction
are the best have seen.
1t is TO be hoped that the use Of these Rods may become
which must be regarded of ordinary magnitude to
which all buildings liable. X. SILIMAN, 1r.,
Prof of Chem in the University of Louisville.
LOUISVILLE January u, 1851.
All orders left ANDREW DUFFY'S Stove Manuactory
7h street, will be promptly attended to; at GEORGE
BELLS, Alexandria, Va of King and ST. Asaph sH
mp 14-tf