New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1873-12-06

About three OF the material OF the bottom
Is broughtup each time This Is analysed as thoroughly
q. the appliances placed board will permit. speci
mems are put up each time for further scientific re-
on shore At the greatest depths there is found
chaky, pasty mud smooth and homogeneous, seldom
containing particles Of sand composed almost ex-
clusvely OF the Inorganic Of Foraminfera and
Datomacea together with the spcula spnes and more
or complete slcious skeletons Of minute sponges
and the closely allied family Of Poycystna. As
DESTROYS OF accomplishing much work as possible
before the stormy fairly sets In dredging has
been neglected but sufficient material has been brought
I'D by the sounding apparatus TO determine satisfac
tory all that required OF the character OF the bottom
APPARATUS AND IMPLEMENTS
Our steam sounding apparatus from which so much
was expected has been in part useless the dynamomeer
not only failing to work satisfactorily, but great diff
Guilty having been experienced In running in the line by
steam IL having been carried away several times. And
what still moro importance, there seemed TO be
uncertainty determining when bottom was reached
The English contrivance. Thomson's machne with No.
% piano wire is without doubt perfection for
the end designed possible AS yet we have to record
its first failure. In regard to sounding machines, the
one that has thus far proved TO DO superior TO ALL in
every respect Is Commander Geo. f. Belknaps cylinder
No. II is q composition, hollow cylinder. having at
its base opening, which is covered on the inside
by small circular piece Of composition held snuglY
Internal shoulders by small spiral spring Into the
outside Of this piece OF composition covering is set
small screw, projecting perhaps and onehaf inches
below the base OF the cylinder In the upper half OF the
cylinder there Is small pump valve hitting snugy
IFS seat and the upper base Of the cylinder there
similar valve Both of these open upward While the
machine sinking, tho water passes up freely through
the lower orce and up through both valves out at the
tom Upou the machine striking the bottom the upward
pressureEof water Of both valves fall,
combining securely the water then between them which
ia OF that directly in contact with the bottom; aud
the orifce in the lower base being opened by the
small screw coming IN contact with the bottom.
freely permits the entrance Of tho bottom material.
pon raising the apparatus the small spiral spring forces
a covering the lower orlfice securely combining
whatever material may have entered This instrument
aso exceis the others in that IL brings up greater
amount OF material the lower half OF the cylinder being
nearly every time filed In addition 10 considerable
quantity OF water from direct contact With the bottom
one or two other instruments, far the
end for which they were designed, have worked with
satisfactory results.
ANOMALOUS BARoMErRICAL OBSERVATIONS.
There has been question among whalers and navi-
gators in these ATTITUDES TO the accuracy OF the
barometrlcal indications, which Is not vet fully deter
mined. During OF the gales which We have exper.
epced which was but moderate one. the barometer
fell seadilyfrom 1910 TO 1915. But when the gale mod
Grated TO gh breeze the barometer continued 10 fall
10 29Go After that the wind again freshened 10 stf
breeze lasting but few hours then tho clouds broke
and soon had the most beautiful aud clear weather
Notwithstanding this fact the barometer steadily pur
sued is downward to t95l, where 1t remained
several hours ana aerward but ghtly during the
day We suppose that this action the barometer may be
accounted for by severe gallo somewhere In our
vicinity. We experienced throughout this interval
long. moderately heavy sea- indicative OF such blow.
On return trip to Victoria experienced q sue
cesson OF gales with but very short Intervals OF
tied weather. considering which Il seemed probable
that the barometer oq@4. - 4c Alpt 20 lively gsyoI,