Marshall County Republican. (Plymouth, Ind.) 1856-1878, 1862-08-14

Iiatnum, q.
'1ts spiral flanges stifren the rod and the rough
edges disspate she electricity, and therein is raucl
better than a smooth surface."--DR BorNToS.
"'The open fanges running spiray the whole
length Of the rod. enable the fluid to freely ira
verse both surfaces and at the same time pursue
the spiral course natural to its movemcnt'-PRor
BucKMAS.
'.when electricity is Communicated 70 4 con
Quoting body, IL does not distribute itself Uniform
~ through the whole mass, but exclusively upon
the surface. "-DRArrR's CHEMISTRY, page los.
Cooper is little affected by exposure, whereas
iron soon rusts. and in few years ceases &c be q
conductor. "-BESsos's ESSAYS. "s
A correspondent of the South Bend (Tnd.) Re-
gister, Of recent date says the frame dwelling OF
Nathaniel Frame, in Warren Township, St. Jo-
seph Co.. was struck by lightning. The rods on Il
we're square iron. in pieces, connected by bsss o.
nuts; Che electricity left the rod at the first con.
nection, and passed into the house. doing consider
able damage. During the same month, the dwell
ing ofD. I. Boomer, Of Peru Tp., same Co., was
struck by lightning. It's rods were Of Autel iron
connected by burrs or nuts The lightning ieft the
rod at the first burr and passed into the house, in
jured Mr.. Bloomer and wife slightly, snd damaged
the house to an extent of $780, Mr. Writers
house, n German Tp.. ST. Joseph Co.. was similar
ly protected. ~ and being struck, the Hghtrsne
len the rod at the third nut. and seriously damaged
The house. We have numerous instances where
outhtuSs CoSeFcu WI " iron rO0S, nave Deeu muir
ed or destroyed by lightning. The School Board
Of Keokuk. Iowa. recently decided to take dexu
the iron rods on their central school house, because
Of their interchangeable building having beer
struck by lightning and materially damaged-and
ordered the erection of Munson's Spiral CoppeI
Rod. We learn that notwithstanding these facts
the Iron rod pedlers are busy in certain quarters
circulating the most outrageous stories about the
copper rod. We caution the public against them
"When the building is protected by Munson'.
Copper Lightning Rod. FIVE per cent. may be de
Quoted from the premium note. No deduction fos
Iron Rods-"-FRox RULES OF IsDrASA Flax In
sURAScK Co.
"Metaf should display as much surface In lafera
dimensions possible, consistent with strength
reduce intensity OF action on the surface. and heat
ing effect. DicrIoSARr OF MEcgxx
les, page 4l6.
"iron, on account of lbs low eon,i-. nov.,
IS more easily melted thar .',-lCrcr.oprpr,
or USEFUL AIRS, pace s,7. - = :
,s'.I. wen -aown the greater the surface Of che
-sor in proportion 70 its mass, the heavier dis
snarge will il be able TO conduct safely. For In
stance: a rod which is G. times as vide ~ il i
thick, will conduct a charge about ~ per cent
greater. without being melted, than a rod which i
square and has the same cross sections."-Moss
G. FARNEn. ELEcraicAL EsGfSxER.
"The efficiency of Lightning Couductors doe
not depend 90 much NJ their power 70 s1eE.cs ~
lightning, as upon the power Of point 10 draw .
way. insenslbly, very powerful charges Of electric
ity from the electrified cloud, thus preventing th,
disrtptive discharge SILLrnas. -,--r
al would NOT hesitate 10 commend Munson'
Rod TO all who wish perfect protection from &C
cidents BY lightning. --Psor, BRowS or THE N
W. C.. USIyrRsrrr.
Orders may be scntby mail, or Icfs at our Office
No. l. Blackferd's Block immediately over Amer
lean Express Co.. Office Pricetwenty Eve cent
per foot, and two pollars for points fAess y I
fine fsld IN this business for pedlers xhe by .
Wholesale.
LOCKE & MUNSON. Manufacturers.
n