Daily American telegraph., 1852-09-16
Protection from Lightning.

TIME undersigned being the duly appointed Agent Of
SPRATTs ELECTRICIAN AND ELECTRO METAILuRGIsT LIGHT
NNeRoD MANuFAcToRI Covngton, Kentucky begs to offer
these superior Rods Carbonized Anneaed
Iron with Zinc Protectors aud EectroposiVe elements
combined in their manufactures thus rendering them equal
copper conductors They are in teneet lengths with
style metallic (patented) attachments for brick
frame buildings also, glass isoaters of novel and nge-
NOUS construction (patented forming lock; the whole
mounted with solid platinum silver point (patented,)
twelve inches long, at the base with three angu
ordinary extent dischargng the oppoe elements Of the
most fearful Thunderstorm and embrace the entire perec
ton Of science up to the present time the whole constta
presented to the public
Safety has not been compromised by aordng these
celent such low rates the greatest attention has
been given their TO be readily attached
The astonishing of the negative magnets In dischar
the air of Its opposite elements has been clearly demon
rated by the Electrometer when unmagnetized 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
appointed can show their certificates Have good rods or
none. CHARLES w. HEYDON,
Washington City
do hereby certify that have app lied various powerful
chemical reagents to spra Patent Points for Lightning
Rods and that the results of these experiments convince
that they will resist the action of atmospheric and
thereby preserve the extremity sharpa condition most
sens protection against lightning The reagents used
in the above experiments solution of chloride of so
chlorc acid With the first, there action the
metal with the several acids, there very ga fact
sufficient show that atmospheric influences would have
JOHN LRcoNTE Prof OF Nat Phil ct Chem.
UNIVERSITY GA, October g. 1850
The Lightning Conductors of Mr. Sprat offered to me,
are well calculated to perform the Office for which they are
Intended Yours, truly Prof RoBT. PETER
LEXINGTON, KY, February 20, 1850.
CHICAGO, September 8, 1850.
This may certify that have examined, somewhat cr-
caly James Spratts Patent Lightning Rods and that
of opinion that IL Is constructed scientific principles For
combining durability, chespness and efficacy, deem 1t
equal and think SUPERIOR TO any other rod offered
for my inspection. Prof. JAS V. u. BBANEf.
AUGUSTA, (GA.) November H. 1850.
This will certify that have examined the Lightning
Rods, Metallic Points, and Isolating Attachments, manu-
conformity 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 resist for years 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 NJ Smith,
Of this city, the plan of Mr. Spratt appear to me TO be
very well devsed and in point Of mechanical construction,
the best have seen.
which be regarded Of ordinary magnitude to
which all buildings are liable. X. SILIMAN, Jr,
Prof of Chem. IN the University OF Louisville
LOUISVILLE, January n, 1901.
All orders left at ANDREW DUFFYS Stove Mandatory,
7h street, will be promptly attended to; or at GEORGE
BELLS Alexandria, Ya corner Of King and St. Asaph SITS.
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