The true northerner. [volume] (Paw Paw, Mich.) 1855-1920, 1878-12-20

After having been for some time delayed by
accidental circumstances, . first experiment In
Illuminating Blingsgste Market by means OF
the Jablockkoff electric light, was made on
Monday night under the auspices Of the
Markets Committee OF the Corporation OF
London. The display was given by sixteen
lamps, so placed as to illuminate the market
most effectively. Their electrical connections
with the eectro-metor were subsidiary to the
four circuits, the lamps on each Of which were
put in action simultaneously. By this arrange
ment any one circuit can be kept in action, at
pleasure. On this circuit, on each current
being completed, the lamp exhibited delicate
pink tint. which almost Immediately gave place
to the white, or blush white light which those
lamps normally give out. Occasionally it was
noticed that the pinklsh hue infused itself the
surface Of the globe, but the effect was 30
momentary as hardly to interrupt the con-
tinulty OF the white light ANY sudden change
inl the rate of motion Of the generators by
altering the electro motive force Of the cur
rent might be sufficient to account for these
variations which, for the purposes for which
the hight would be required, would be Of no
consequence whatever. 1t is to be borne in
mind. also, that on Monday night there was a
first trial with a new machine, 30 that it is
hardly to be supposed that the light produced
would be at its best. Great diversity Of opin-
ION prevailed among the large body Of visitors
present at the private view as to the practical
efficiency OF the proposed mode OF illumination,
but the general opinion was decidedly favora-
BILE to it. AS its rivalry to gas was involved in
the trial, the electric lights we're put out after
half an hours burning, and the gas-jets Of
which an immense Eumber have hitherto been
used to light the market, we're allowed to re-
sumo their wonted duty. Gas made by no
means a bad fight OF It IN the trial, but a con-
siderable quantity Of it was fiaring away, and
the quantity was necessarily an important
factor Of tho result. A fish salesman in the
market hit upon an emnently practical ex-
pedient for comparing the two lights. Before
the electric lights we're extinguiShed he placed
box OF mackerel near one OF the lamps, aud
afterwards compared the illuminating effect
with that produced by gas. He was under
stood to declare his preference tor the latter,
but at the came time said that the electric was
a fine light, and would do well for the market
purposes, but to be effective the number of
burners provided was not sufficient. The
practical value CT the light found, Of course,
numerous advocates, but there were also, as
was to be expected, some amount OF adverse
opinion. In the first blush Of actual trial, be-
fore the new system has had any time to per-
feet itself in tue new situation in which 1t has
been applied, it would obviously be premature
to venture upon any definite expression one
way Or the other. The Jablockkof light is to
have four months trial, aud in that time the
question will undergo sufficient amount OF
investigation by the test of experience for its
complete and satisf actory determination.