The New Orleans daily Democrat. [volume] (New Orleans, La.) 1877-1880, 1878-04-01

electric lamps. Twelve Of these lamps were
placed In position In Q straight line, extending
from the end Of the Manhattan Oil Company's
wharf to Hog Rock, a distance Of nearly 800
feet. Owing to some accident, eight OF these
lamps became displaced In laying them, and
remained either wholly unlfghted or gave
forth such feeble, sickly light as to be
scarcely dlstinguishable.
amply rewarded for the discomforts they I'M
derwent In the sight OF the submarine illu-
mination that the other lamps afforded. The
bottom OF the river for several hundred feet
around was clearly defined, and the smallest
stones at the bottom distinguishable to the
naked eye. The enthusiastic reporter of the
Star even swore to having seen the affrighted
fishes darting away through the water when
the electric current was turned on and the
lamps first lighted, but as he had resorted
order, he explained, to keep out the cold and
wet, this "fish story" was credited to imagi-
nation.
The lamps we're kept lighted for nearly
half an hour, two more OF them going out in
the meantime. The party being pretty well
drenched through by that time, the professor
postponed further experiments, and the Hud-
son steamed back to the landing.
The lamps used were Of the Jomini pattern,
third size, as improved by Dufour and Cham
peneau. Each OF these lamps will illuminate
space Of from 1900 to 5000 cubic feet, in pro-
portion to the purity of the water and the
strength of the current In which it Is placed.
Although q Pole by birth, the professor
has been In the service Of the Russian govern
ment for nearly thirty years. 1t was he, it
may be remembered, who removed the OBJ
structions sunk in the harbor Of Sebastopol
during the Crimean war to impede the en-
trance of the Anglo-French fleet, and who as
sisted In late improvements In the harbor OF
Revel.
The removal Of the distractions In the
Danube, now being carried on by commits
sion of Russian, Austrian and Turkish en-
gineers, was begun by him and Is now under
the supervision OF his nephew and pupil, Os-
car Gutenberg.
Prof KedowsM Is inventor of the cleo
tro-irradiating submarine lamp and the
Tchernitz candle, used in many Of the Aus
TRAN salt mines. He Is member Of the lead
ing scientific societies Of Europe and knight
of the Order Of Catherine.
The professor informed the Herald reporter
that he would leave for Mexico, via New Or
leans, on Monday. He goes to Mexico in the
employ Of the American Wrecking Company,
which has secured the contract for raising the
Spanish treasure ship La Numancia, lost near
Tuxpan In the great cylone Of 1749. The
professor will probably stop at Wilmington
the lamps in Mobile Bay, to assist the United
States engineer engaged there in removing
the wrecks Of the rebel rams sunk by Far
ragnt.
The professor promises a lecture at Stein
way Hall, on Submarine Geography and Ex-
plOrations."
1t was understood last night that Capt. Eads
has made propositions to the professor to
visit the ietties with his illuminators, in order
that the mysteries Of the bar may be I'M
raveled and careful survey made. It re-
mains to be seen whether the professor will
remain with us.