The Express.
London, England, 1855-05-18 00:00:00

LOYAL INSTITUTION.

On Monday Dr. Tyndall, in hie lecture on voltaic
sleetrisity at the Royal Inatitatios, soticed the peculiar
doestopeseuts of the force by secondary canasta sod by
heat When au electric curtest passes through a coil of
sapper wire It an sorties Is bodies mooed the soiL
Thee whea a pities sli soft iron is introdueed wlthis t►e
hollow formed by the twisted wire it becomes strongly
august* and magnetism is also induced I. ins brought
sear any part of a wire through which voila' electricity is
trumaitted. It instead of Iron the coil is surrounded with
smother coil of *lamer copper wire, the latter become
.barged with elostrielty at the moment of making and
breaking cosiest with the voltaic battery, though no por-
Use of the electricity from the battery passes directly
through it. The effects of t►e secoodary canvass thus ia-
doted were shows by several experiments, is which the
esseasotary action on the galvanometer was illustrated by a
wire ta no manner cossested directly with the vol.
tale battery. Ose of these experiments exhibited
this remarkable Mica is a. striking and novel
manner, extreplifying at the SUM time the slime
manszios between elestrieity and 111111gastisat. ♦ largo
bellow sod was pissed vertically oa the looters table, sad
whilst the ends of the wire were connected with the voltaic
battery iron sails were dropped into the centre. The is-
least/amen ladnetlea of =again= in the nails as they fell
*reset the hallow mil excited elmitrisity la the ',emery
coil, whisk developed itself by thilleetiag the seedle of a
pinamestsr. The West of best Is developing eleetrisity,
which wee bet mails knows by Profane liesebsek, was
explained and I/Imitated I. a variety of experiments. To
prates, the 'Rest It is asemeary that there s►oald be •
varieties et tamperatere, sad it would appear, indeed, that
all variances of temperature, in metale at least, excite elec-
tricity. When the wires of a &vasomotor were brought
in contact with the two soda of a hosted poker, the prompt
dedeetiois of the saleswomen needle indicated that a car-
mat of elestrisity bad bees seat through the instrument. I
Eve* the two 'ads of sepsis, sae of which bed boon dipped
is het water, served le develop an electric -curtest ; sad in
suiting a het beef steak with • steel Italie and a silver
kelt there was an essitomeat of electricity. The two
metals that exhibit the phesomeson most seasitively
are bismuth and antimony ekes soldered together and
heated at the point of junction. The mere hest of the
Gager wee shove to be sulkiest to muse the dellestion of
the galvesemeose, sad when iee we. applied to the part
that hod bola previously warmed, the phanosseter seed!.
was deflected la the esstrary directioo. By an alternating
series el small bismuth and antimony bare the effect may be
Jammed in the suit manner es the effect of a voltaic bat-
tery is intessided by adding to the number of plates. A
small inetranteat Jimmied by Mellon! was exhibited, which
wm se extremely sensitive of the action of heat that electri-
city was wiled when the band was held six lathes from it.
It is aot arromony, however, that di/Weal metals should
be seed to produce session effects, foe a keg* of brim
wire aasealed at gives distances may be made to develop
electricity very readily if all the points which have bees
smisealed are doubled together and thee warmed by the
head. When a thereso-eleetric wire is heated below red-

som the elestrie current developed, is ia the opposite dirge-
*Ma to the 'arrest essited whoa t►e temperature is Ir
creased to isesedereeses. This remarkable ism was

illesissted by leldlq tae wise is a spirit lamp, when the
weak ',the pivanemeter, which had been Ant deflected
la sae direction, turned in the opposite direction as soon as
the wise beanie ma lot. Dr. Tyndall said that no satis-
factory esplaaatim bed been disomered foe this very curious
phsaausaaa•

&wrung ros Vi

poll for tie siestias of vestrymen sad auditors for the parish
of Marylon.* indly closed at 4 o'clock yesterday after-
nes, mad absut 10 °Work the isspeeton of totes Made
tbsir rens et NM Cemnbesse, where the slumbers were
auseseed to be se Isßews: for in list of the Batsmen'
Association, pssimbrisGeseral Bagaeld, 1,774 ; for the
list of ties t Anciation. proposed by Mr.
Cl Own^ ; majority for Gann* Bagsold's
BM, IS Thenonsmeemeat was received with groat sp-
lines by lb* M. lithe eamessful list.
00N410,111' ON 8110111.—Advien frost Cantu-

ti.Wamemb.ll;;t tM Waif (ra•-boat) woo labors at
ate suss of the Dordooollas, riotous to tbs Idtl May,
but was pt nu* assiesL
(Advertises/St )1111ALOWAY1 OINTMENT AND
hum woo • morn et • Irma Mr.
hi* aiNamo. ott No Rah, Nollet, Lodi. dated
kola 111. 1161:—To AWN= 1 Nisi tot meths
Maki' vary bad kw" sall old own SW* Imams,
vtalsot soma The mot ow gas toff as snobs tht t
boom todoado aboloot aa to vtimpe 1 atide stela do re
et lbossatr. by tli• ot por demo ad pttba samillag
IMO soollaratiy redosad. ad Is Nat mobs vas onsietsty
oared. vlidt mead so is earti. eddy ill mists
atmolloothambarmemalloor $11,111.14,
lima" MI lea liswiTak.