REPORT ON THE DEEP-SEA DEPOSITS. 
53 
Kesldue. 
Additional Observations. 
Siliceous Organisms. 
Minerals. 
Fine Washings. 
2 '00 %), a few Radiolaria, 
Sponge spicules, Astrorhizidse, 
Lituolid®, Diatoms. 
(40'00 %), m. di. O’lO mm., 
angular and rounded ; quartz, 
monoclinic and triclinic 
felspars, fragments of mica- 
schist, diabase, &c., magne- 
tite, glauconite, mica. 
(43 '41 %), amorphous matter, 
minute fragments of Diatoms 
and minerals. 
The coarser siftings of this mud, of which a large quantity 
came up in the dredge, consist of a grey gravel, some 
of the pebbles or large grains measuring from 1 to 5 
cm. in diameter. One of these pebbles is a quartzite 
containing zircon, tourmaline, rutile, kaolinised felsjiar, 
and chloi'itic matter ; others are diabases, basalts, and 
dolomites. 
2 '00 %), Radiolaria, Sponge 
spicules, Astrorhizidse, Litu- 
olidae, Diatoms. 
(45 '00 %), m. di. 0T2 mm., 
angular and rounded ; mica, 
quartz, felspar, magnetite, 
tourmaline, garnet. 
(37 '60 %), amorphous matter, 
many minute fragments of 
minerals and siliceous spi- 
cules and Diatoms. 
The mud from the dredge contained a good many rounded 
and angular pebbles from a millimetre to a centimetre 
in diameter, composed of quartziferous diabase, mica- 
schist, &c., the same as at the last station. Traces 
of manganese are found on some of the pebbles. 
Rhabdoliths have quite disappeared ; on the other hand, 
there are a good many Coccospheres. 
r 
3 '00 %), Radiolaria, Sponge 
spicules, Astrorhizidse, Litu- 
olidae, a few glauconitic casts. 
Diatoms. 
(70'00 %), m. di. 0T5 mm., 
rounded and angular ; quartz, 
fragments of older volcanic 
and other rocks, felspar, 
pumice, glauconite, magne- 
tite, &c. 
(17 '32 %), amorphous matter, 
with fragments of minerals. 
Sponge spicules, and Diatoms. 
Ho deposit was obtained in the sounding tube ; descrip- 
tion taken from mud obtained in dredge. A large 
block of syenite came up with the dredge. It weighed 
about 5 cwts. (253 '7 kilogrammes), and was jammed 
between the mouth and arras of the dredge. Some of 
the mnieral fragments measure over 1 mm. in diameter. 
Many of the quartz grains are covered with limonite. 
3 "00 %), Radiolaria, Sponge 
spicules, Haplophragmium, 
Diatoms, 
i'OO %), 'Radiolaria, Ehab- 
dammina, Haplophragmium, 
brown imperfect casts. Dia- 
toms. 
(•00 %), Radiolaria, Sponge spi- 
cules, Astrorhizidse, Troch- 
ammina, glauconitic casts, 
i Diatoms. 
■‘OO %), Radiolaria, Sponge spi- 
cules, Ehabdammina, brown 
imperfect casts. Diatoms. 
•00 %), fragments of Radio- 
laria and Sponge spicules, 
Haplophragmium, a few 
Diatoms. 
•00 %), a few Radiolaria and 
Sponge spicules, Lituolidae. 
(20^00 %), m. di. 0^10 mm., 
angular and rounded ; felspar, 
pumice, quartz, glauconite, 
augite, hornblende, mag- 
netite. 
(20 '00 %), in. di. 0'08 mm., 
angular ; quartz, monoclinic 
and triclinic felspars, frag- 
ments of older crystalline and 
otherrocks, glauconite, augite, 
hornblende. 
(25^00 %), m. di. 0^15 mm., 
rounded and angular ; mono- 
clinic and tricliuic felspars, 
quartz, fragments of rocks, 
augite, mica, hornblende, 
magnetite, glauconite. 
(lO'OO %), m. di. 0^08 mm., 
angular ; monoclinic and tri- 
clinic felspars, quartz, rock 
fragments, augite, hornblende, 
volcanic glass, magnetite, 
glauconite. 
(2^00 %), m. di. 0^07 mm., 
angular ; monoclinic and 
triclinic felspars, quartz, 
volcanic glass, glauconite, 
magnetite, mica. 
(1^00 %), m. di. 0^07 mm., angu- 
lar ; felspar, augite, horn- 
blende, magnetite, glassy 
volcanic fragments, mica. 
(60 •75 %), amorphous matter, 
many fine mineral particles, 
and fragments of Radiolaria, 
Sponge spicules, and Diatoms. 
(49^25 %), amorphous matter, 
many fine mineral particles, 
and fragments of Diatoms. 
(46^98 %), amorphous matter, 
with fragments of minerals 
and Diatoms. 
(55 ^12 %), amorphous matter, 
fragments of minerals and 
siliceous organisms. 
(71^44 %), amorphous matter, 
fragments of minerals, Radio- 
laria, and Diatoms. 
(43^19 %), amorphous matter, 
with fragments of minerals 
and siliceous organisms. 
Some of the minerals measure over 1 mm. in diameter. 
Fragments of older crystalline rocks are also found, 
many covered with chlorite. 
The minerals are mostly angular, but a few are rounded 
and measure about 1 mm. in diameter. Dredge line 
broke. 
Uvigerina, which has been very common or abundant in 
all the soundings lately, is here very sparingly re- 
presented ; the pelagic Foraminifera are, on the other 
hand, larger and more numerous. 
Many of the larger Foraminifera, as Fulvinulina men- 
ardii, &c., are much perforated and corroded, showing 
well the solvent action of sea-water. This, together 
with the preceding and following deposits, are in some 
respects Red Clays or Globigeriua Oozes ; the presence 
of ancient rocks places them among the Blue Muds. 
This deposit contains much amorphous clayey matter, and 
was formerly classed with the Red Clays. 
A few of the mineral particles are about 3 mm . in 
diameter, and are probably ice-borne. 
Roi'muda to Halifax — continued. Halifax to Bermuda. 
