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



Chief foraminif era: — Cassidulina suhglohosa, Glohigeiina pacliy derma, Nonionina 

 pompilioides ; none of them abundant. 



14. Station 290; March 6, 1903; lat. 67° 39' S., long. 36° 10' W. ; depth 

 2500 fathoms. 



Glacial Mud or Clay. — Greenish-grey in colour, pale grey when dry. Does not 

 feel so clayey when rubbed between the fingers, and there are a considerable number of 

 gritty particles. 



CaCO^:—Wi\. 



Siliceous Organisms, a trace : — Fragments of diatoms, one sponge spicule. 



Minerals 20 per cent. : — Fragments of quartz hornblende gneiss up to 5 mm. in 

 diameter. All the larger grains rounded. Quartz abundant, one or two grains show 

 distinct striae. Magnetite, pumice, yellow volcanic glass, hornblende, augite, brown 

 mica, a little felspar. 



Fine washings 80 per cent. : — Similar to No. 10. 



14a. Station 291; March 7, 1903; lat. 67° 33' S., long. 36° 35' W. ; depth 

 2500 fathoms. 



Glacial Mud or Clay. — From trawl. In addition to mud, the trawl brought up a 

 large number of rock specimens, some angular, mostly rounded or sub-angular. Some 

 are striated ; some appear to be water-worn. Rocks include gneiss (abundant, a number 

 of pieces with red felspars), soft decomposing granulite, hornblende schist, flaggy gneiss, 

 schistose quartzite, pumice, and slate. 



The washings from the trawl contained Echinoid spines and brittle-star arms, a few 

 sponge spicules and radiolaria, also numerous arenaceous forarainifera. 



Chief f ova miyiif era : — Astrorhiza ci-assatina (en masse), abundant ; Hyperammina 

 ramosa, fragments; H. elongata, also only fragments; Hormosina normani, also only 

 fragments. Miliolina bucculerita is the only lime-builder found. 



15. Station 295; March 10, 1903; lat. 66° 40' S., long. 40° 35' VV. ; depth 

 2425 fathoms. 



Glacial Clay. — Very similar to No. 13. More clayey than No. 14, but also con- 

 taining numerous gritty particles. 



CaCO,:— mi 



Siliceous organisms : — Nil. 



Minerals 20 per cent. m. di. 0"07 mm. :^A few sub-angular rock fragments up to 

 2 mm., in diameter, but the great majority of the mineral particles are small. Quartz, 

 hornblende, felspar (monoclinic, triclinic, and microcline), grains like serpentice, 

 magnetite, both by itself and embedded in volcanic glass, chlorite. 



Fine washings 80 per cent. : — Largely minute mineral particles, although there is a 

 considerable amount of amorphous clay. No fragments of siliceous organism^. 



