The Express.
London, England, 1858-01-06 00:00:00

PROPBSSOB PARADAT 8 CHLISTAIAS
LICTURES.

Yesterday Professor Faraday delivered the fourth
lecture of his course on electricity at the Royal Institution.
His Royal Highness the Prime of Wales occupied a chair in
front of the lecture table, sad the Persian Ambassador, with
three &Modulate, and accompinisd by ea iaterpreter, was
also praesat. The Prime of Weir was attended by Lord
Dania and Mr. Gibbs.

The property of electricity to which Professor Faraday
directed the attention of his audience was induction, and its
action an bodies at a distance. He commenced by exhibiting
in the first place the instantaneous passage of electricity
through good coodactors,by sending a charge through a long
wire in which there were interruptions near to the point of
discharge and at its termination near the outside
of the Leyden jar, at both of which spots the
sparks were visible at the same time. The velo-
city of the trenuniadon of electricity is so great that it has
been meartained by Mr. Wheatstone it would peas six
times mead the globe in • second of tints. The ma-
sideration of the action of the electric force through am-
conductors is, as Professor Faraday observed, even more
wonderful than its tranandasion through metals, for
through those non-conductors electricity paean instan-
taneously without contact. The approach of an excited
glass rod to an electrometer is sufficient to prove this
peculiar ratan of the force, for the gold leaves expand
when the elestric is at • distance from the instrument • bat
the effect becomes moos remarkable when a solid insulating
body, such as • sheet of shell-lac, is interpoeed between
them. With that arreageraent of the apparatus the
electrometer becomes as readily affected as when there a as
iaterrening body. Induction takes
though• on all bodies
within the sphere of electrical action, in
circumstances it is not apparent. Thus, when thedr=
brought near an excited electric • quantity of electricity Is
induced in it, which is not perceived until so handatieg
sabstance, such 118 • strip of peps,. is brought near; and
than the hand repels the paper, bemuse both have elec-
tricity induced In them of the some kind so long ea they
remain within the range of the electrical action. Tes few
that static, electricity is retained in the surface of bodies,
and not in the interior, was illustrated by • variety
of experiments; the moat remarkable of which was
performed with • silk net with a small metal plate at
the bottom fastened round • ring to which • handle was
attached. When the net was electrified the outside meal-
! felted evident signs of electricity, bat an insulated bell
applied to the Maids brought away no charge whatever.
By • dexterous turn of the handle the net was turned
Amide oat, end then the cirearemances were reversed;
for the part that had been inside became highly electri-
cal sad the otber aide wee bee from electricity. Several
striking experiments wee also shown to illustrate the
ja tact, ass boor ea which electricity is in.
ibrdithalbit the two eMAuYtir, mad that an insulated
cmadnetor, whoa bees& our Is es aidtad electrical ma-
chine, has the skienserad to the pie amductor charged
with negative eleebriefsad is elter Me with electricity
ol the positive kid When ea bruhisi Nadsotor la eager
*Mud Waft, it waits side is Is dam* eissidid
daft. sal villa monad b• • dimmer kin ussike
his tiessr aborkity. 14 however, se inoleted sew
duster be leeshel vile under the lima el ledmisa,
id he its seared, the coadoolor voindoe assesi. Pre-
tence Pseuds, observed that the would
tai=edjuded.Levoill to farther si d the eon-
whib is the iset
add oleo-
ropriks, and without whisk as issHirt phissmoss

Ott laajaar the Hall the Prises at Wain alai bob
with his Hiaslimay Farakh Khan sad the ammalows ad Ids
mite, aad alto with his oawaszkos at the Ham al Odom,
acid with the laarsod sad papaw pealawar.

DATATAL PAWL DMZ MUM DAT.
TIIISDAT, Jas. b.—Mobilise cs print, 2,010 ;
by arm Ikea% 300; Ski Albin, 3,310.