Daily American telegraph., 1852-06-26
protaction from Lirhtning.

FlHE undersigned being the duly appointed Agent oi
SPRATrs ELECTRICIAN ElEuTR0 MEfALLuRGisr Light
kNaRoD MANurAcToRY Coyngton, Kentucky begs 70 oer
these superior Rods of spatwed CarboniIed Anneaed
combined In their manufacture thus rendering them equal
copper conductors They in teneet lengths, with
aecurateyhted brass connecting joints, entire
new style of metallic (patented) attachments for brick or
frame budings also, glass isoates, 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
lar negative magnets which possess tne 70 an
most fearful Thunderstorm and embrace the entire perfec
ton science up to the present te the whole constu
ting the most magnificent anu perect ent CONDUCTOR ever
presented to the public
Safety has not been compromised by afordng these ex
ceent rods at such low rates. the greatest attention has
been given to construction be readily attached
The astonishing power of the negative magnets In dschar
ing te air % m nSsn pont
have shown but slight results shough placed under the
conditions In fact they gather ana silently ascnag
electricity from the atmosphere when you would scarcely
suspect any being present.
These being secured by double letters pa
tent you hereby cautioned against laying yourselves
LIABLE by purchasing of those who not authorized or
who substituting inferior limitations. All agents duly
nome none. CHARLES v. nEYDoN,
do hereby certify that have app lied various powerful
chemical reagents to Spras Patent Points Lightning
Rods and that the results Of these convince me
that they will resist the action of atmospheric causes and
thereby preserve tho extremity shapa condition most
sentia protection against lightning The reagents used
dum common sat acec acid sulphurc acid, and hydro
chlorc acid With the first, there action on the
metal with the several acids, there was very sa fact
sufficient show that atmospheric influences would have
JOHNLECoNTE, Prof of Nat. Phil. ct Chem.
UNIVERSITY OF GA, October 8, 1850.
The Lightning Conductors of Mr. spratt, offered to
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 criti'
cay James Sprats Patent Lightning Rods and that
of opinion that 1t constructed scientific principles For
combining durability cheapness, and efficacy deem 1t
equal and think SUPERIOR to other rod ever offered
for my inspection. Prof JAS. v. Y. BLANEY.
| AUGUSTA, (GA) November IL, 1850
| This will certify that have examined the Lightning
Rods Metallic Points, and Isoating Attachments manu-
ctured by Mr. Sprat and regard them constructed in
conformity the general laws of the electric ud and the
metallic compound constituting the Points, promising,
tests to which they submit.
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, Ga.
The Lightning Conductors put up by Mr. Henry b. Smith,
of this city, the plan of Mr. spra appear to me TO be
very we'll devised and in point of mechanical construction
| are the best have
It Is to be hoped that the Of these Rods become
general important auxiliary defence against danger
which be regarded of ordinary magnitude, to
which all buildings are liable Il. SILIMAN, Jr,
Prof of Chem. in the University of Louisville.
LOUISVILLE, January 27, 1851.
All orders left at ANDREW DUFFY'S Stove Mandatory.
7h street, will be promptly attended to; or at GEORGE
BELLS Alexandria, Va of King and ST. Asaph SITS
ap lift