Daily American telegraph., 1852-08-25
Protection from Lightning.

fNHE undersigned, being the duly appointed Agent OF
SPRATTs ELECTRICIAN ELECTRO hETAILURGIsT LIGHT
NdRoD MANUPAcroRY, Covingon Kentucky begs to offer
superior Rods of Spirawsted Carbonzed Annealed
Iron, with Zinc Protectors, and Eectroposve elements
combined in their manufacturer thus rendering them equal
copper conductors They in teneet lengths with
accurately fitted connecting JOINTS entire
new style metallic patented attachments for brick
frame buidngs ALSO glass solaters Of novel and inge
NOUS construction, paented forming locks the whole
mounted with solid platinum silver point lpatented)
twelve inches long, at the base with angu
lar negative magnets which possess the power to extra
ordinary extent dschargng the opposite elements Of the
fearful thunderstorm, and embrace tho entire perec
ton Of up 70 the .ns sve
Safety has not been compromised by aording these
ceent such low rates. the greatest attention has
been given to their construction, to be readily attached
The astonishing power Of the negative in
srated by the Eectrometer, when unmagnetsed points
have shown but slight results though placed under the
conditions In fact they gather and silently discharge
electricity from the atmosphere when you would scarcely
suspect any being present.
tent you hereby cautioned against laying yourselves
LIABLE by purchasing Of those who are not authorized or
none CHARLES W. HEYDON,
Washington City.
hereby certify that have app lied various powerful
chemical reagents spratts Patent Points for Lightning
Rods that the results these experiments convince
that they will resist the action Of atmospheric causes and
the mss ed
in the above experiments were solution OF chloride OF So
diu common acetc acid suphuric acid and hydro
chloric acid. With the first there no action on the
METAL with the several acids there very sa fact
sufficient show that atmospheric influences would have
no sensible effect.
JOHN LEcoNTE, Prof Of Nat Phil ct Chem.
UNIVERSITY OF Ga, October 8, 1885,
The Lightning Conductors of Mr.. sprst offered to me,
well calculated to perform the Office for which they
intended Yours, truly, Prof R0BT. PETER
LEXINGTON, KY, February 20, 1850.
CHICAGO, September 8, 1850.
This may certify that have examined, somewhat crit-
cally James Spratts Paton Lightning Rods and that
opinion that 1t Is constructed scientific principles For
combining durability cheapness, and efficacy deem IL
equal and think SUPERIOR to other rod ever offered
for my inspection. Prof JAS. v. q. BLANEY.
AUGUSTA, (GA) November IL, 1850.
This will certify that have examined the Lightning
Rods Metallic Points, and Isoating Attachments, manu-
featured by Mr. Sprat and regard them as constructed In
conformity to the general laws Of the electric fud and the
metallic compound constituting the Points, promising,
from the result Of several tests TO which they submit
resist for years the action Of those atmospheric causes
most likely TO corrode them. A. MEANS,
Prof Phys &c., Emory College, Ga, and Prof Chem. and
Pharm., Medical College, Ga.
The Lightning Conductors put up by Mr. Henry NJ Smith,
Of this city, the plan Of Mr. Spra appear to TO be
very we'll devised and In point Of mechanical construction,
are the best have
1t Is hoped that the Of these Rods may become
general important auxiliary defence against danger
which must be regarded Of ordinary magnitude to
which all buildings are liable II. SILIMAN, Jr,
Prof Of Chem. in the University Of Louisville.
LOUISVILLE, January n, 1851.
All orders left at ANDREW DUFFYs Stove Mandatory,
It'll street, will be promptly attended to- at GEORGE
BELLS Alexandria, va corner Of King and St. Asaph ss
ap 14-h