TIL E T RIB U N E i.

sEwYoRK, TUESDAY MORNING, JULY 10, 184l.
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LIeHTSlsc.-It has been stated that metallic roofs are


sufficient protection from lightning This statement mas re-
Gently very striking been dsproved ne Cot
ton House at Hamburg s. c. having zinc root was STRUCK
on the Ilh ut and considerably damaged 1hs is IN per-
m accordance with the Of the science OF electricity
u be stated as general principle that all metallic sub
,ans in or upon or any way attached to building, not


.ed TO certain hight above, and extendng-having per-


, continuity throug certain depth in the ground
40 ar from aordng any protection actually increase the
DANGER The metals present less resistance to the passage
d electricity than bricks. woods stones, &c. On this
count the fluid viii sometimes pass whore metallic sub
nncc interposed when otherwise ii would pass all


The same law applies persons. The body an in


or conductor abityto stroke of lightning is greatly
Increased by wearing about 1t any metallic substance
ee buk instance conducts the electric fluid many thou
snd times better than the person by whom it is SO
far the metal extends protects the object which it
apped but extremities where the fluid is received
from an inferior conductor is discharged in like manner
an explosion takes place All the injury that is sustained
occusoned by this explosion In efforts guard against
sbtning we should study avoid that for the explosion
avoided all harm is passed If fashionable
steel plate extending three feet above the head and
a, the same time reaching below the feet, all who followed



diverted from its course, and be led almost any direction
by placing that direction metallic rods properly arranged


person inclosed gold cage would be altogether of
the reach Of stroke of lightning. Dwelling houses and
other buildings may be eectuay protected by placing upon
them sufficient number Of metallic rods constructed,
nec,ed and arranged all particulars according the requ
siiOns Lightning conductors for buildings,
suuc,ed this manner furnished aud erected by A NJ
9uimby No. Isl Fulton-strcet, n y


otD TlaEs.--DoMEsrlc MASurAoTUREs.--In 1872,
The Laws of the State of NewYork comprising the Con-


,ution and the Acts of the Legislature since the Revou
ioa from the Firs, The Eighteenth Session inclusive
we're published in two volumes BY Th"Ras Greeleat The
following extract from ,ke Editors 'Prciace:'


The Editor, having engaged publish cheap edition
Of the Revised Laws OF New YORK presents
the public with The first volume The types and paper were
manufactured in This STATE Anxious To give pubic salts
fasion and fearing utter the publication OF his proposals
that the types therein proposed To PRINT ts work upon would
ror hold good the end the Edor engaged Mr. Map
pa Of this city, ingenious ype-i"under IRON HOLLAND 10
cast new foun it, which unavoidaby delayed the publ
cation for nearly two months. However dsasreeabe this
delay been the subscribers as well as to the
Editor who suffers by it Is TO be presumed that the
consideration of giving encouragement TO the Manufactures
Of our State will more than compensate he types are not
50 PERFECTLY regular as those from the London toundrles,
which been improving for centures but no cash ~e
to London for them; and infant Manufactures onght
10 be encourGs ed, that THEY ALSO may tmProre.


The Editor presents his grateful thanks generous list Of
upwards of fourteen hundred subscribers Their names shall
bt annexed tc the second volume per Counties IN alpha
beca arrangement With unremitted endeavors to merit
the patronage the public the Editor subscrees their o6e
dent vaRt, THOMAS GREESLEf'


IT, subscription list is added the second volume and
thr st vho have the curiosity examine will find great
names there from all the then Counties OF the State sane
,ionog in this emphatic though Incidental way the
ssement OF American Manufactures.