REPORT ON THE DEEP-SEA DEPOSITS. 
123 
Residue. 
;eii I Siliceous Organisms. 
Minerals. 
Fine Washings. 
Additional Observations. 
11 (50 ’00 %), Radiolaria, Astror- 
hizid®, Lituolid®, Sponge 
spicules, Diatoms. 
00 (I'OO %), a few fragments of 
Radiolaria and arenaceous 
Foraminifera. 
(I'OO %), Radiolaria, Astrorhizid®, 
Lituolid®, Sponge spicules. 
57 (I'OO %), Radiolaria, Sponge 
spicules, PJiizamraina alyas- 
formis. Diatoms. 
(3 '00 %), Radiolaria, Sponge 
spicules, Hypcrammina ram- 
osa, Lituolid®, arenaceous 
Textularid®. 
5o! 
70 
72 
(2 '00 %), Sponge spicules, Litu- 
olid®, arenaceous Textularid®, 
a few Diatoms. 
(2 '00 %), Sponge spicules, Litu- 
olid®, arenaceous Textularid®, 
Diatoms. 
(2 '00 %), Sponge spicules, Litu- 
olid®, arenaceous Textularid®, 
Diatoms. 
(5 '00 %), m. di. 0'08 mm., 
angular ; felspar, augite, 
magnetite,'magnetic spherules, 
manganese grains, many small 
prismatic crystals of phillip- 
site, pumice. 
(lO'OO %), m. di. 0'20 mm., 
angular and rounded; almost 
exclusivelymade up of crystals 
of phillipsite, augite, felspar, 
magnetite, manganese. 
(5 '00 %), m. di. 0'15 mm., 
angular; phillipsite spherules, 
felspar, plagioclase, augite, 
hornblende, magnetite, glas.sy 
volcanic fragments, manga- 
nese, magnetic spherules. 
(I'OO %), m. di. 0'06 mm., 
angular ; magnetite, volcanic 
glass, palagonite, felspar. 
(20'00 %), m. di. O'lO mm. 
angular ; altered volcanic 
glass, augite, plagioclase, 
felspar, a great number of 
black volcanic particles some 
of them mametic. 
(12'00 %), m. di. 0'20 mm., 
rounded ; quartz, felspar, 
augite, hornblende, glassy 
volcanic fragments, magnetite, 
manganese grains, titanite. 
(15 '00 %), m. di. O'lO mm., 
angular; plagioclase, felspar, 
augite, olivine, magnetite, 
volcanic rock fragments, 
palagonite. 
(15'00 %), m. di. O'lO mm., 
angular ; volcanic glass, oli- 
vine, plagioclase, felspar, mag- 
netite, augite, hornblende. 
(41 'll %), very many small 
crystals of phillipsite, frag- 
ments of pumice and siliceous 
organisms, relatively little 
amorphous matter. 
(89 '00 %), composed essentially 
of small crystals of phillipsite, 
small manganese grains, and 
amorphous matter. 
(65 '72 %), very many small 
crystals of phillipsite, frag- 
ments of other minerals, 
manganese and amorphous 
matter. 
(88'57 %), much amorphous 
matter, mineral and siliceous 
remains. 
(56 '53 %), many fine mineral 
particles, amorphous matter, 
and fine remains of siliceous 
organisms. 
(2 '66 %), amoiqihous matter, 
and a few remains of minerals 
and siliceous organisms. 
(60 '70 %), many mineral frag- 
ments, amorphous matter, 
and siliceous remains. 
(57 '72 %), many minute mineral 
particles, amorphous matter, 
and fine siliceous remains. 
The trawl and attached tow-nets contained a few animals, 
much ooze, a quantity of manganese nodules, some 
earhones of Cetaceans, sharks’ teeth, and pumice frag- 
ments. The nucleus of one nodule is composed of 
amorphous clayey matter, bordered with zeolitic crys- 
tals. A glassy volcanic pebble, the outer rim ti'ans- 
formed into palagonite, was also obtained. 
Not a single fragment of pelagic Foraminifera can be 
observed; there are, however, a few arenaceous Fora- 
minifera, and a good many small teeth of fish, but 
only a few Radiolaria. The crystals of phillipsite are 
frequently grouped so as to form small yellowish or 
dark globules made up of a more or less considerable 
number of microliths. One small fragment of quartz 
was observed. 
The trawl brought up about half a ton (508 kilogrammes) 
of manganese nodules,* some small pieces of pumice, 
some angular basaltic pebbles, many sharks’ teeth (one 
very large) ; some of these are thickly and others 
slightly coated with manganese. The most numerous 
minerals are crystals or globules of phillipsite, which 
sometimes have a diameter of 0 '20 mm. The percentage 
of carbonate of lime is the mean of two analyses. 
The deposit in the lower part of the tube was of a 
chocolate colour, and contained only traces of carbonate 
of lime (small teeth) and no Radiolaria or Diatoms. 
The mud in the upper part was of a light grey colour, 
the transition between the two being gradual. In the 
upper layer the organisms mentioned were observed. 
The minerals are all volcanic. 
The hulk of the deposit is made up of fragments of corals. 
These and the other particles measure 0'5 mm. in 
diameter. 
This sounding is 705 fathoms from the edge of the reef. 
Not much of the deposit was brought up. The upper 
layer was slightly red, but otherwise the bottom is 
similar to that taken in 420 fathoms. 
he|:clei of the nodules consist of fragments of basaltic rocks or lapilli, vitreous and generally ve.sicular, the vesicles coated witfi green delessite and chahasite, 
irisr' tic zeolites; dolerite; augite-andesite; palagonite; clayey matter; sharks’ teeth and bones of Cetaceans. Sometimes palagonite is seen transforming into clayey 
r. I all cases these nuclei are very much altered. The nodules were mostly from 1 to 2 cm. in diameter. 
Sandwich Islands to Tahiti — continued. 0(f Tnliiti. 
