REPOET ON THE DEEP-SEA DEPOSITS. 
95 
Residue. 
■ 
Additional Observations. 
Siliceous Organisms. 
Minerals. 
Fine Washings. 
(2 '00 %), Sponge spicules, Litu- 
olidfe, Textularidae, glauconi- 
tic casts, Diatoms. 
(15'00 %), m. di. 0'50 mm., 
angular and rounded; quartz 
often covered with limonite, 
tourmaline, felspar, glauconite. 
(5 '10 %), flocculent amorphous 
matter, fine mineral particles, 
fragments of Diatoms. 
Two dredgings were taken, one in 6 and another in 8 
fathoms. The characters were similar in both cases, 
and also similar to the deposits taken on the 
previous day. There is less red coloured material than 
at the previous station, but on the other hand the 
glauconite is more abundant. The red material of 
these and the preceding stations, on treatment with 
acid, breaks up readily, only a few of the organisms 
retaining their characteristic outlines. Calcareous con- 
cretionary nodules were also observed. Quartz is the 
chief mineral. 
(3’00 %), Sponge spicules, Litu- 
olidae, casts of Foraminifera, 
Diatoms. 
(45’00 %), m. di. 0'20 mm., 
rounded ; quartz, glauconite, 
felspar, hornblende, fragments 
of rocks. 
(13 "30 %), ferruginous amor- 
phous matter and small frag- 
ments of minerals. 
One or two casts of the F oraminifera of a yellow colour 
remained after treatment with acid. Calcareous con- 
cretionary nodules about 3 cm. in diameter were 
observed here as in the preceding deposits. 
(3 '00 %), glauconitic casts, Tex- 
tularidae, Sponge spicules, a 
few Diatoms. 
(25 ’00 %), m. di. 0’20 mm., 
rounded ; quartz, glauconite, 
green mica, tourmaline, zir- 
con. 
(40 '87 %), amorphous green- 
grey and other matter, fine 
mineral particles, and a few 
siliceous remains. 
In this deposit there were calcareous nodules as at Stations 
186 and 187, but much smaller in size and in some 
cases dark in colour, due to the impregnation with 
black oxide of manganese. The glauconite is more 
abundant than in the four preceding stations. 
(2 '00 %), Sponge spicules, Hy- 
perammiTia, a few casts. 
1 
(50'00 %), m. di. OTO mm., 
angular ; quartz, glauconite, 
large fragments of felspar. 
(24'96 %), fine mineral particles, 
flocculent green amorphous 
matter. 
The calcareous nodules in this deposit are about 6 inches 
long in some cases, and are covered with Serpula, 
Corals, Polyzoa, Polytrema, Carpenteria, and Eyperam- 
mina. After acid there remained a greenish red residue 
of imperfect casts of organisms, minerals, &c. There 
is much amorphous matter in this deposit, some of 
which is transparent, with a green tint ; it shows 
aggregate polarisation. This matter is proliably to be 
referred to glauconite. There are also present some 
small fragments of calcite. 
(2‘00 %), Radiolaria, Sponge 
j spicules, a few pale green 
j casts of Foraminifera. 
(30‘00 %), m. di. OTO mm., 
rounded and angular ; quartz, 
felspar, tourmaline, glauco- 
nite, zircon. 
(26 '40 %), amorphous matter, 
fine mineral particles, and a 
few fragments of siliceous 
organisms. 
This deposit is similar to the last. There are more 
pelagic Foraminifera here than in the five previous 
deposits. No calcareous concretionary nodules were 
found. 
j(l '00 %), Sponge spicules, Radio- 
1 laria, Lituolidse, Diatoms. 
(I'OO %), m. di. 0 '06 mm., angu- 
lar ; quartz, felspar, horn- 
blende, glauconite, zircon. 
(84 '05 %), much fine green amor- 
phous and clayey matter, with 
small fragments of minerals 
and siliceous organisms. 
Among the organisms in this deposit there were worm- 
tubes formed of the clayey material. Fragments of 
wood, twigs, and seeds, were also present. 
;i‘00 %), Sponge spicules, glau- 
conitic casts. 
1 
1 
1 
1 
(1'00%), m. di. 0’06 mm., 
angular ; quartz, felspar, 
glauconite, pumice. 
(57 '80 %), amorphous green 
coloured matter, fine mineral 
particles, and a few fragments 
of Sponge spicules. 
There was a large quantity of mud in the sounding tube ; 
that on the top was of a green colour tinged rvith 
brown, while at the bottom it was more clayey with 
a blue tinge. After treatment with acid there remained 
pale and dark green glauconitic grains and casts. There 
were some concretions of Globigerina Ooze cemented 
into a fine almost opaque paste of carbonate of calcium. 
In the concretions some of the Globigerinidse are filled 
with glauconite. 
j 1 '00 %), a few Sponge spicules, 
1 casts of Foraminifera, Litu- 
olidse. 
(I'OO %), m. di. 0'08 mm., 
angular ; glauconite (irregular 
or spherical grains), quartz, 
felspar, rarely thin greenish 
scales of a chloritic mineral, 
green pyroxene. 
(89 '70 %), amorphous matter, a 
few small fragments of 
minerals. 
Several soundings were taken, at two of which there were 
traces of Coral Sand on the lead. At 3.30 p.m., south 
of the Tionfolokker Islands, the Blue Mud described 
was obtained. Near the same place two hauls of the 
trawl were taken, and the deposit obtained was a Coral 
Sand with large perforated fragments of calcareous rock. 
Cape York to Arvou Islands— Arrou Islands to llanda. 
