I'AILKli INSCRIPTION OF DEPOSITS. 



(l-OOpercent.). Diatoms,aa (55'00percent.)m.di. 0-3m.m. Many particles 



, : ,,ntz, *<■., fully 1 n...n; mica felspar horm 



I i'e bb-mic, magnetite, augite, and coloured alter, d 



j particles ; fragments of coal a 

 fragments 





ud coal ash ; glassy 



(I 00 per cent.). 1 

 as Bbizosolenia, Cosii 



Chtetoceros, and 



1 ■ 



llL-b. Spoil 



S] ge spicules. 



1 1 flu pi i- cent.). Sponge 



■ ■ 



i :i..i RhizoBolenia, 



■ ■ 



rdia, Mit/.schia, Rhizosolema. 



(60*00 per cent.) m. di. 4. Many particles over 

 1 in in. Quartz, mica, felspar, hornblende, 

 augite, magnetitej many coloured red and 

 yellow-green altered particles; fragments of 

 coal and coal ash ; glassy fragmenta. 



(5500 per cent.) m. di. 0"2 m.m. Some quartz 

 fragments from 1 to 3 m.m. Mica, quartz, fel- 

 spar, hornblende, augite, magnetite : fragmenta 

 ol coal and coal ash; glassy fragments. 



(6000 per cent.) m. di. 0'32. A few fragments 

 uf rounded quartz 1 m.m. Mica, quartz, fel- 

 spar, augite, hornblende, coal and coal ash; 

 some glassy fragments. 



(25-00 per cent.) in. di. 5. A few quartz frag 

 meats 1 to '2 m.m. Rounded quartz, felspar 



mica, hornblende, augite; magnetic particles 

 glassy fragments ; in. my coloured altered par 

 tides ; eoal and coal asb ; clinker. 



coal ash, 

 (98-00 [ 



di. O'i'i in. m. to 1 m.m. 



(6000m.) di. 02 m.m. Rounded and angula 



. :■■• ■■; -on.. ,■ ;it. d w II 

 mil '.. ail j.t'.', felspar, hornblende 



magnetite ; glassy lr;.gui' nl, ; and a few particle 



ol coal b >h. 

 r.iT 00 pel com.) in. di. 02 m.m. to 1 m.m 



I'hielK i mi iidc, 1 quartz grains, many coated with 

 ferric oxide. 



■.: (. 2 ui. us. Rounded and 

 angular quail/., mica, augite. hornblende, fel 

 -spar, magnetite ; glassy iragments ; traces ol 



(2400 per cent). Consisting of fine 



argillaceous lu.iU.r, line mnieial parti- 

 eles, with fragments of diatoms and 

 sponge spicules, decayed organic 



(-29 -no per cent.). Argillaceous 

 matter, fine mineral particles, and 

 fragments of siliceous organisms, 

 with some organic material. 



(29'00 per cent). Argillaceous 

 matter, tine mineral particles, frag- 

 ments of si li.-eou.s organisms, Uocciilciit, 

 amorphous matter, and traces oi 



(33*00 per cent.). Argillaceous 



matter, line mineral particles, traces 

 of organic material, fragments of 



sponge .-picnics ami diatoms. 



(1000 per cent). Ferruginous, 



fiocculent, amorphous matter, traces of 

 argillaceous matter, fragments of 

 casts, sponge spicules, diatoms, 

 organic matter, and semi-chitonous 



129-00 per cent.). Argillaceous 



matter, tine mineral particles, frag- 

 ments of sponge spicules and diatoms, 

 amorphous matter. 



Argill 



il tides, 



(34 00 per cent.). Argillaceous 

 matter, fine mineral particles, glassy 

 fragments, fragments of sponge 



spicules and diatoms. 



■UUHTIONAL UHSEilVAlInxs. 



The dredge brought up fully one hundredweight of the dej osit, which showed three distinc 

 The surface layer, some two inches in thickness, composed of a soft, thin, dark brown rm< ] 

 which weie great numbers of Turrndta Urchra. Quite 9s per cent, of these were dead Bhella 



bad alia.. 'he, 1 to them a small I, right pink-coloured actinia \ttuit,ul<s coroham), and Home an 

 Hfr,. t /oi^it ifrus^lnria). 'I lie middle layer, -U inches m i hiekm -s, v , , 



with extremely few remains of uiganisms. The lower layer : 



doubtful thickness, in which no organic remains were observe 



■no,,'/ t 



The dredge gave a similar mass of deposit as was obtained over the area of Station I. The sample 

 brought up in sounding tube, as also that in the dredge showed the three distinct layers The 



" itamed a greater quantity of the de;>d shells of Turrit'lla ttrebra. The othei or-aniiins 



ilso, with one or two exceptions, similar to those obtained at Station I. 



brought up a considerable quantity of the deposit both at the east and west end of the 

 t obtained at the east end was a bl.ie-giv. eu dy mud containing manv dead shells of /' 

 d colonies, or bosses, of the worm tubes .s " v,,, .,/r>:vluta. At the west end the dredge 

 ue muddy sand and shdU with pMches of o. . iv . uhcrciit. plastic clav • in other parts 



a pure brown sand with fragments of rounded a lew a, v tuar- tine-gramed compact red Sandstone. 

 Quartzite. Shale, and Schistose rn.de, 4 l to 3 in dies, all more r, '.wsuvei-.Tunn with b.ilauus, serpula, and 

 gypsma, nmsth dead. Traces of the line argill.;... ai-, materia: was observable. 



Both the sounding tube and dredge gave ; 

 that obtained at Stations I. to IV. by the t 

 size of the mineral particles, which are hen 

 thin surface layer of brown argillaceous mat 



I,,.- nation a imnv t\ i icrd Inunog, neons m mi, differing from 

 . nee ol perfect dca. i lull.- of u,e large moliusea. and the 

 lore unii.irin, and the absence of rod. iragments, with a 



The sounding tube gave only a few grains of shell fragments. The dredge brought up fully one 

 hundredweight of the deposit at the middle of this station, 'made up . hn-lly of I > i - broken-down parts of 

 gastiop.ul and iatiicllibrancn ,-lu.lls. from which the bulk of carbonate of ljnie is d.-riv.-.l. the majority of 

 these, with the other organic remains, are seen to be more or le.-- u nitrated throughout unit ferruginous* 

 material, while some are dark greenish-grey in colour. In somM crystallisation has taken place" All 

 these fragments, when treated w,th dilute hydrochloric acid, b.-ai Hid and perfect easts remain, brown, 

 reddish, yellowish-green, and grey-black. The whole of the deposit taken by dredge was carefully pu-sci 

 through sieves on board. In this way a number of smoothly -rou id..d and' angular rock fragments and 

 pebbles were obtained, viz. :— Coarse and (m-.-graincd sandstone, mici-sehisi , augite, dio,ue, gneissic rock, 

 quartz, clinker, and coal, measuring £ to g inch. Many of these were much altered. Some arc perfectlj 

 round, with smooth surfaces, while others are angular. 



A considerable quantity of the deposit came up in the dredge showing in parts layers of shelly sand, in 

 others a coherent plastic mud. Another haul with .hedge in the muhu, of this station gave soiucwhal 

 * 'le at the tctit <-ud the dredge gave a finc-graintit ixddith-broivn mn<:, 

 ght traces of brown mud on the surface. 



The dredge came up fill- d with this homogeneous mud, from which, after being washed through 

 sieves, a number of Ga*(t roj'O^.i, Lameiiih'urfh.-., Crn?:ac<i* t Eclunwu:i ms, II onus, d-c, d-c, were obtained. 

 The dredge at the west end of this station gave a pure reddish sand, with a few shells, as Funis, 

 Aj.'orrhui-t, S<j!>n, '.'.irdniiii, and A&terid-'i. 



Tin.' sounding tube brought up a small quantity of bluish -grey mud, with a thin surface h.ycr < 

 of a reddish-brown colour. The dredge brought up a ipiantity oi similar material, showing tract 

 layer of the same fine red-hrown mud, which appeals to owe its origin to a more recent time, ■; 

 the settling down of the hue argillaceous matter in suspension .an n d o'll from th<- \Umt I'oit.n 

 this deposit, was pushed through the sieves and the organisms preserved, which are here more abundant 

 than at any of the other stations examined. 



hably 1 



