, 1866-04-20

md 1t becomes those Hho would be xa1c from then
attendant danger TO tRSe ali necessary pretaut1on
against the many disas1e1r which attend them The
weatherw1sc, ne belfere, agree In The fheorT thai
they will be violent In their nature and oi frequent
nom Iris cause u mnch larger ihan most people
anticipate. This we could prove from n1nree wefe
A. lie best protection aeain.t tbc f1eht'o1 effects
u usul.oet.b .bolts have tad occa=ton In several
lnstsueet heretofore, 10 commend the Continuous
Copper s'RP ghz@E condactof The tavcnion Of
ha- moi La the least lee.ened our conviction a4
to ;he eus7ectnese OF our Judgment 1'biA Truth We
our kroniedee we're Ii nece%sary to do 70; hut The
tact IL row 10 unlre1aa. recognized thsi We deem
!, needles to urge The point. We arc quite sure
peo1 10 my ne,sii!e eas.tance now 10 n;e These
is one other lmpoz'Rnt 3eztnEn connected With light
Ming eondacto1., nossese, shicn has aeeI matter
inEly we'll ported IN alt mAtss. connected With the
Avs OF e!ectz7csy and ths is. as to whether iasu
lat.on 9oDsnsnlatoL II foundcd aI.on true prin-
ciples prole So Bftttan cousends for the lAttes
principle, and we think proves almost oeyoud con.
,no,e1sy ut h,s theory y correct Ttis theory ls
The conductor should be placed in immediate
contact rtih The s.rnc,ntr 10 protected and II
Ashed between al the rnasees Of metal 1houf lhe
bniIdDC such a. metallic root. "ater gnftcrs,
eeimnsy esp: ,,on ts',Inftt ,5 e. snd w.es plpss
the couductor and The balIdinG with al the metal.
lie bodie which cpltr into lts construction, act TO-
gether and in perfect harmony to pro mote 1he
equilibrium OF tht Attractive and repu1.lte forces
Of electricity, thereby pr venting explosive dis
charge altogether; or, IN care Of AeupeIzhnndAncc
Of one orei the oitez. these co9ntntl conductors
act con}otnty End hsrmon1ous1J tn transmitting
Inc prevailing cutr nt ttther hez*euwafd Or earth
ward without danger. ~
In The esse Of insulated conductors. ihe@e cou
dhlpus are materially changed Two separate Al
tpdependeut pa1hways ire pfetensed ies Inc p.tsaG
OF ihf e,ectrac huld namely: The ondtne. with II
apprr,enapcx,a md lhc lightning conductor. o<
canse by the i OF md dQcIfur, two Insulated hod!e
xtanne In The sclxtipn 10 each other ~ the bulk
tnp and the insulated conductor, Will NOT uanem
At The same moment the tame idenucal cQffent
electricity. 1t mar chsnce IRON one to toe otns
a. The one q the other may alternately present y
easier path to1 The electricity In motion ana no
tt&y mode ot Insulation ~tu prevent this 1nte
ehanGc Of THO nuid from the rod to the building,
1rom The building TO the rod
such being the taet, 1t becomes MISTER OF III
pnrt1nce 10 be hhc to dstern,ne ~nlch ot the ~
rathwayF viii le more likely 10 receive the lHtl
nlnE charge. This may be decided by reference
fundAmeDtal fac1, VIZ: lightning always follow
tbe iin< Of 1ea&t feA A.aance-
We ka1n that tho Faculty Of the Ch1capo Ur
ye1etty have inst oFdesya FTof. Bf3itaa,s Nehtun
copdpctorx to te placed rpuo That hsalulitul estdc
Thle bas bet done aHer thorough lett Of fhe '
rtsoug urrjudlce 1t the ttart against The o1
Nhtch they have unaplmou4ly adopted Thit ntuv
much m iaxor OF Prof. BE1tlens theory We ca
daily commend h1s conductor to tn sttentpn
MI tshQ With 10 cona!tE, them elves sale from Il
tiAsst1oua effects Of uncontrolled thunder bot
Prof B.1.'xnf ofbce Il at No. 10 Post Once Rlpcl
his Post 06aee Box 2S