658 DR J. H. HARVEY PIRIE ON DEEP-SEA DEPOSITS 



dark stain, while the uncovered part is clean. The pieces are all either dark hornblende 

 gneiss, quartzite, or granulite. 



Foraminifera : — No pelagic or porcellaneous forms observed. Arenaceous forms 

 not abundant, but the commonest is Meophax pilulifera. Other forms are Reophax 

 nodulosa, Saccammina sphserica, and Bathy siphon JUiformis. 



18. Station 303; March 14, 1903; lat. 64° 24' S., long., 43° 18' W. ; depth 2547 

 fathoms. 



Glacial Mud or Clay. — More bluish-grey in colour, light grey when dry. Rather 

 more clayey than No. 17, but not so much so as previous samples. A fair number of 

 gritty particles, 



CaCO,:—Wi\. - 



Siliceous organisms, a trace : — Fragments of diatoms. 



Minarals 15 per cent. m. di. 0"08 mm., sub-angular and angular: — Quartz, biotite, 

 hornblende, felspars, magnetite, tourmaline, (?) apatite. 



Fine ivashings 85 per cent. : — Some amorphous clayey matter, chiefly very minute 

 mineral particles. 



19. Station 309; March 16, 1903; lat. 63° 51' S., long. 41° 50' W. ; depth 2550 

 fathoms. 



Glacial Clay. — Drab grey in colour. A tough clay again without many gritty 

 particles. 



Caco,. --mi 



Siliceous organisms, a trace : — Fragments of diatoms. 



Minerals 10 per cent., m. di. 0'07 mm., sub-angular and angular: — Quartz, mica, 

 hornblende. One piece of red felspar 2 mm. long ; a similar sized piece of slaty-looking 

 rock. Some small pieces of volcanic rock enclosing magnetite. 



Fine washings 90 per cent. : — More clayey matter, but still chiefly composed of fine 

 mineral particles. 



,20. Station 312; March 17, 1903; lat. 62° 56' W., long. 42° 20' W. ; depth 

 1956 fathoms. 



Glacial Mud. — Similar to No. 18, but with fewer gritty particles. Much less 

 clayey than No. 19. 



CaCO^:—Wi\. 



Siliceous organisms 1 per cent. : — Sponge spicules. 



Minerals 10 per cent., m. di. 0"06 mm., angular and sub-angular: — Quartz, felspar, 

 mica, hornblende, magnetite in grains alone and enclosed in volcanic glass. 



Fine ivashings 89 per cent : — Similar to No. 18. 



21. Station 313; March 18, 1903; lat. 62° 10' S., long. 41° 20' W. ; depth 

 1775 fathoms, 



