Daily American telegraph., 1852-10-15
Protection from Lightning,

TIME undersigned being the duly appointed Agent CT
SPRATT's ELECTRICIAN ELECTRO METALLURGIsT LIGHT
NNGRoD MANUFAcTonI Coyngton, Kentucky, begs to offer
these superior Rods Carbonized Anneaed
Iron with Zinc Protectors and Eectropositye elements
combined in their manufacturer thus rendering them equal
copper conductors They in teneet lengths, with
style Of metallic (patented attachments for brick
frame buildings also, glass isoater Of novel and inge-
NOUS construction, (patented forming lock; the whole
mounted with solid platinum silver point, (patented)
twelve inches long surrounded at the base with three angu
negative magnets which possess the power extra
ordinary extent of dchargng the opposite elements Of the
most fearful Thunderstorm and embrace the entire perec-
ton Of science up present tme the whole constu.
ting the most magnificent and perfect silent conductor
Safety has not been compromised by aordng these e1
celent rods at such low rates the greatest has
been given to their construction to be readily attached
The astonishing of the negative magnets in dischar
the air of its opposite elements has been clearly demon
strated by the Eectrometer when unmagnezed 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. F.
tent you hereby cautioned against laying yourselves
liable, by purchasing Of those who not authorized
who substituting inferior limitations. All agents duly
appointed show their certificates Have good rods or
none. CHARLES w. HEYD0N,
Washington City.
do hereby certify that have app lied various powerful
Rods and that the results Of experiments convince me
that they will resist the action Of atmospheric causes and
senta 70 protecon against shn;nS The ssS
In the above experiments solution Of chloride
dum Common salt acec acid sulphurc acid and hydro
chlorc acid With the first, there action on the
metal with the several acids, there very ga fact
sufficient to show that atmospheric influences would have
sensible effect
JOHN LEcoNTE Prof Of Nat. Phil etchem.
UNIVERSITY OF Ca, October g. 1850.
The Lightning Conductors Of Mr. spratt offered to me-
well calculated to perform the Office for which they are
intended. Yours, truly, Prof RoBT. PETER.
LEXINGTON, Kr, February 20, 1850.
CHICAGO, September 8, 1854
This may certify that have examined somewhat cri
cay James Sprats Patent Lightning Rods and that am
of opinion that IL Is constructed scientific principles
combining durability, cheapness and efficacy, deem Il
equal and think superior, to other rod offered
for my inspection. Prof JAS v. r. BLANEY.
AUGUSTA, (GA) November IL, 1850.
This will certify that have examined the Lightning
Rods Metallic Points, and Isolaing Attachments
featured by Mr. Sprat and regard them constructed in
conformity TO the laws Of the electric fud and the
metallic compound constituting the Points, promising
from the result Of several tests TO which they submit
ted to resist for years the action Of those atmospheric
most likely TO corrode them. A. MEANS, ~
Prof Phys &c., Emory College, Ga and Prof Chem. and
Pharm., Medical College, Ca
The Lightning Conductors put up Mr. Henry M Smith,
of this city, the plan Of Mr. spratt appear TO be
very well DEVISED and in point mechanical construcon
tho best have
II TO be hoped that the of these Rods may become
which must be regarded Of no ordinary magnitude to
which all buildings are liable. II. S1LIMAN, Jr,
Prof Of Chem In the University Of Louisville.
LOUISVILLE, January II, 1851.
All orders left at ANDREW DUFFY'S Stove Mandatory
7th street. will be promptly attended to; at GEORGE
BELLS Alexandria, va corner Of King and st. Assph
an Aft .#.