OF THE SCOTTISH NATIONAL ANTARCTIC EXPEDITION. 663 



Globigerina Ooze. — Dark brown in colour with numerous light-coloured specks 

 (foraminifera). Light brown when dry. Moderately coherent, but easily rubbed 

 down in water. Slight clayey feeling. Gritty. 



CaCO^ 24 per cent. (Anal.) : — Foraminifera and a few fragments of lamellibranch 

 shells. 



Residue 76 per cent. : — Dark grey in colour. 



Siliceous organisms 2 per cent. : — Diatoms and radiolaria. 



Minerals 40 per cent., m. di. 0"07 mm., angular and sub-angular: — Felspars, some 

 fresh and clear, but mostly cloudy and weathered, including two pieces of plagioclase 2 

 to 3 mm. in length, augite, magnetite, quartz, brown hornblende, volcanic glass, and 

 some brown mica. 



Fine washings 34 per cent. : — Fine mineral particles, diatom fragments, and a little 

 amorphous matter. 



Foraminifera ."—No less than twenty-nine genera and sixty species in this deposit, 

 including practically all the types characteristic of the Globigerina oozes of the 

 S. Atlantic, the Globigerinidse being quantitatively the most abundant. 



29. Station 346 :— December 1, 1903; lat. 54° 25' S., long. 57° 32' W. ; on the 

 Burdwood Bank ; depth 56 fathoms. 



Hard Ground. — Only a very minute fragment of brownish clay containing a few 

 specimens of Globigerina dutertrei and G. pachyderma. The trawl, however, brought 

 up a large number of masses of calcareous shelly and foramiuiferal sand varying in 

 size up to that of an orange, and from these some eighty species of foraminifera were 

 obtained, chiefly of shallow- water Antarctic facies, the most abundant being G. hulloides, 

 G. dutertrei, Truncatulina variabilis, and Polystom^lla crispa. Arenaceous types very 

 rare, being represented only by Trochammina nitida. 



30. Station 387 ; February 26, 1904 ; lat. 65° 59' S., long. 33° 06' W. ; depth 

 2625 fathoms. 



Glacial Clay. — A brown tenacious clay with a bluish tinge. Grey in colour when 

 dry. Very clayey and very little grit. 



CaCO^, a trace : — Foraminifera. 



Siliceous organisms, a trace : — Radiolaria. 



Minerals 5 per cent., angular, m. di. 0"12 mm. : — A few larger rounded mineral 

 particles, chiefly quartz, about 1 mm. in diameter. One showing distinct striae. 

 Remainder small and angular. Quartz, green augite, felspar (microcline and plagioclase), 

 brown mica, yellow and brown palagonite grains, a few small grains of magnetite, a 

 little green hornblende. 



Fine washings 95 per cent. : — Fine mineral particles with a considerable amount of 

 true amorphous clayey material. 



Foraminifera: — Exceedingly few in number, Globigerina dutertrei, G. pachyderma 

 and Proteonina difiugiformis being the only forms noted. 



