REPORT ON THE DEEP-SEA DEPOSITS. 
65 
Kesedue. 
Additional Obseevations. 
Siliceous Organisms. 
Minerals. 
Fine Washings. 
(3 '00 %), Radiolaria, Sponge 
spicules, Diatoms. 
(2 '00 %), Radiolaria, Sponge 
spicules, arenaceous Fora- 
minifera. Diatoms. 
(lO'OO %), m. di. 0'15 mm., 
angular; felspar, augite, mag- 
netite, volcanic glass, frag- 
ments of volcanic rocks, olivine. 
(5 '00 %), m. di. O'lO mm., 
angular; fragments of volcanic 
rocks and volcanic glass, 
olivine, felspar, magnetite, 
augite, black mica. 
(47 '75 %), amorphous matter, 
with fragments of minerals, 
Radiolaria, Sponge spicules, 
and Diatoms. 
(45 '48 %), amorphous matter, 
with minute fragments of 
minerals and siliceous organ- 
isms. 
Some of the shells of Foraminifera and fragments of other 
organisms are macroscopic. The fine washings are 
^ chiefly made up in these deposits, as well as in many 
others similarly situated, of minute mineral particles 
less than 0 '02 mm. in diameter. 
(I'OO %), a few Radiolaria and 
Diatoms. 
(I'OO %), m. di. 0'08 mm., 
angular, except a few rounded 
fragments of quartz ; frag- 
ments of volcanic rocks some 
of them vitreous, augite, horn- 
blende, magnetite, olivine, 
palagonite, manganese grains. 
(43 '71 %), amorphous matter, 
with minute fragments of 
minerals and siliceous organ- 
isms. 
All the pelagic Foraminifera, of which this deposit is 
chiefly composed, are very large and well developed 
forms, especially Pulvinulina menardii. Many of 
these Foraminifera appear to show striking indication 
of having been acted upon by some solvent. 
(I'OO %), a few Radiolaria, 
Lituolidffi, Diatoms. 
(I'OO %), m. di. 0'06 mm., 
angular ; felspar, augite, horn- 
blende, magnetite. 
(67 '85 %),much flocculent amor- 
phous matter, with minute 
particles of minerals, Radio- 
laria, and Diatoms. 
Fine washings more than half made up of mineral frag- 
ments less than 0'02 mm. in diameter. This deposit 
might be called a Red Clay. 
(I'OO %), Radiolaria, Astror- 
hizidse, Lituolid®, imperfect 
brown casts, Diatoms. 
(1'00%), m. di. 0'07 mm., 
generally angular ; felspar, 
hornblende, round green frag- 
ments resembling glauconite. 
(35 '78 %), amorphous matter, 
with minute mineral particles 
and fragments of siliceous 
organisms. 
The dredge brought up some dark coloured ooze, the 
colour being due to land detritus. There were small 
yellow grains in the deposit, which on micro-analysis 
were found to be phosphate of lime. 
(1 '00 %), Radiolaria and Diatoms. 
(35'00 %), m. di. O'lO mm., 
angular ; felspar, plagioclase, 
quartz, mica, hornblende, 
zircon, glauconite, a good 
many small manganese grains. 
(57 '78 %), flocculent amorphous 
matter, many minute mineral 
particles, fragments of sili- 
ceous organisms. 
This deposit contains much amorphous clayey matter and 
many fine mineral particles. The glauconite in the 
deposit at this and the last station is represented by 
one or two grains. 
I'OO %), a few Radiolaria, 
Astrorbizidae, Lituolidae. 
(2'00 %), m. di. 0'06 mm., 
angular; sanidine, hornblende, 
magnetite. 
(30 '73 %), flocculent amorphous 
matter, with many small 
mineral particles. 
Only a small quantity of this deposit came up. The 
subjoined analysis was made with less than half a 
gramme. The specimen does not appear to be quite so 
dark coloured as that obtained in 1876 at nearly the 
same place. As at Station 98 the specimens of Pul- 
vinuKna, menardii predominate. 
... 
Some traces of deposit on outside of the tube. 
2 '00 %), Radiolaria, LituoMae, 
Diatoms. 
(1-00%), m. di. '0'13 mm., 
angnlar ; felspar, augite, mag- 
netite, afew manganese grains. 
(25 '30 %), amorphous matter, 
with minute mineral particles. 
This deposit still shows traces of land detritus. 
Some traces of deposit on outside of tube. 
I'OO %), Radiolaria, Lituolidae, 
Diatoms. 
(I'OO %), m. di. 0'06 mm., 
angiilar ; fragments of sani- 
dine and pumice, manganese 
grains. 
(8 '53 %), amorphous matter and 
minute mineral particles. 
Note the increase of carbonate of lime in the lesser depths. 
Some ooze in the trawl. 
I'OO %), a few Radiolaria. 
. '00 %), Radiolaria, a few arena- 
ceous Foraminifera, Diatoms. 
(I'OO %), m. di. 0'15 mm., an- 
gular; sanidine, augite, glassy 
volcanic particles, magnetite, 
one small piece of pumice 
observed. 
(I'OO %), m. di. 0'07 mm., an- 
gular ; olivine, magnetite, en- 
statite, actinolite, chromite, 
serpentine. 
(17'53 %), clayey matter and 
fine mineral particles. 
(13 '10 %), amorphous matter, 
with many minute mineral 
particles. 
Owingto some rustyparticlesfromthesounding tube becom- 
ing mixed with the deposit, the percentage of carbonate 
of calcium in the accompamdng analysis is probably less 
than it ought to be. 
Mineral particles evidently from St. Paul’s Rocks. 
(deep-sea deposits chall. exp. — 1890.) 9 ' 
on' St I’iiui’rt 
Off Capo Vorcle Islands— St. Vincent to St. Paul’s Rocks. liodcs. 
