OF THE SCOTTISH NATIONAL ANTARCTIC EXPEDITION. 657 



From the traivl were obtained a number of pebbles similar in their genera] characters 

 to those from No. 14o, chiefly pieces of hornblende gneiss, quartzite, and granulite ; 

 also a piece of hsematite, numerous flakes of biotite, a trachyte, and a fine-grained tuff 

 containing crystals of augite and olivine. 



A few arenaceous ybrainMit/era, chiefly Astrorhiza crassatina, also three specimens 

 of Hormosina globulifera. 



16. Station 300 ; March 12, 1903 ; lat. 65° 29' S., long. 44° 06' W. ; depth 

 2500 fathoms. 



Glacial Clay. — Drab grey in colour ; light grey when dry, almost uniform, but 

 with a few dark specks. A fairly tough clay, with gritty particles. 



CaCO^ 2 per cent. (Anal.) : — Foraminifera. 



Siliceous Organisms : — Nil. 



Minerals 12 per cent., m. di. 0'08 mm., sub-angular and angular, the larger pieces 

 being all sub-angular : — One quartz pebble stained with limonite 4 mm. long, not 

 striated. Quartz, hornblende, mica, magnetite in grains and embedded in volcanic 

 glass, serpentine, felspar, glauconite grains. 



Fine ivashings 86 per cent. :— More amorphous clayey matter than in any previous 

 sample. 



Chief foraminifera: — Glohigerina dvtertrei, G. pachyderma, Truncatulina 

 pygmcea, Proteonina diffliigiformis, Haplophragmoides stihglohosum, Ct/clammina 

 pusilla ; none of them abundant. 



17. Station 301 ; March 13, 1903 ; lat. 64° 48' S., long. 44° 26' W. ; depth 2485 

 fathoms. 



Glacial Mud. — Of a dark drab-grey colour when wet, drying into a hard light- 

 greenish-grey mass. Much less clayey than previous samples, having no clayey odour 

 when breathed upon. The tongue adheres only very slightly to the dry specimen. 

 It takes a lustrous polish, but the streak on porcelain, of a greenish-brown colour, is 

 not shiny. It breaks down readily in water into a flaky condition almost without 

 rubbing, and there is only the slightest unctuous feeling when rubbing down. 



CaCO^ : — A trace. 



Siliceous organisms, a trace : — Sponge spicules and radiolaria. 



Minerals 10 per cent., m. di. 0'08 mm., rounded and angular: — Quartz, 

 felspar, hornblende, mica, zircon, magnetite, and augite. Fragments of slate and of 

 quartzite. 



Fine ivashings 90 per cent : — Chiefly very fine material particles, very little 

 amorphous matter. 



Rock specimens obtained from trawl : — A few rock fragments, some angular, others 

 rounded, and several showing glacial striae. Two pieces of granulite evidently been 

 recently dropped, the side which has been embedded in the mud being covered by a 



