670 DR J. ti. HARVEY PJRIE ON DEEP-SEA DEPOSITS 



characteristic forms being Proteonina dijjiugiformis, Rhizammina algseformis, Reophax 

 nodulosa, Cyclammina cancellata, C. ].)usilla, Trochammina glohiyeriniforinis, and 

 Amynochilostoma pauciloculata. The Miliolinidse are represented by Biloculina 

 depressa and Miliolina venusta ; the Textularidse by Gaudryina, Clavulina, and 

 Cassidulina ; the Lagenidge by four species, including the rare forms L. staphyllearia 

 and L. Jieldeyiiana. Globigerina dutertrei common, three species of PuUevia, two of 

 Truncatulina, two oi Pulvinulina, two Nonionina, and one Rotcdia. 



47. Station 451; April 13, 1904; lat. 48° 06' S., long. 10° 05' W. ; depth 1742 

 fathoms. 



Diatom Ooze or Globigerina Ooze. — Only a small amount of deposit obtained 

 off the swabs attached to the trawl, which contained numerous pebbles. The deposit 

 has almost certainly been washed in coming up, so may not represent quite truly the 

 character in situ. Of a greyish colour, with a tinge of yellow when wet, a pure white 

 cement-looking substance when dry. lleadily crumbles between the fingers, and 

 breaks down almost of its own accord in water, without rubbing. 



CaCOs 55 per cent. : — Foraminifera. 



Residue light brown in colour. 



Siliceous organisms 30 per cent. : — Diatoms, radiolaria fairly abundant, sponge 

 spicules. 



Minerals 5 per cent., angular and rounded: — Quartz, felspar, augite, volcanic 

 glass, magnetite. 



Fine ivashings 10 per cent. : — Chiefly fragments of diatoms and radiolaria. 



Rocks from trawl : — Nearly half a hundredweight of rock fragments, mainly under 

 2 inches in diameter. Angular and sub-augular chiefly, a few showing glacial stria\ 

 particularly one rounded pebble of black shale. White quartzite most abundant ; 

 granite, diorite, greywacke, shale, slate, hard fireclay (one piece), a few volcanic rocks, 

 mostly scoriaceous, some compact basalts. Some clean, most with a black coating of 

 manganese. 



Chief foraminifera : — Globigerina inflata, G. dutertrei, G. pachyderma. Also 

 rather numerous more northern types, such as Bolivina nohilis, B. reticulata, 

 Bulimina aculeata, B. buchiana, Uvigerina pygmcea, Truncatulina lobatula, Pulvi- 

 nulina canariensis, P. crassa, Nonionina umbilicatula. Only two arenaceous forms, 

 Proteonina difflugiformis, Gordiammina charoides. 



48. Station 454; April 15, 1904; lat. 45° 56' S., long. 10° 05' W. ; depth 1799 

 fathoms. 



(?) Ooze. — Nothing in sounding-tube. Merely a small scraping obtained from the 

 outside of the tube. Probably a Globigerina ooze. 



49. Station 459; April 20, 1904; lat. 41° 30' S., long. 9° 55' W. ; depth 1998 

 fathoms. 



