98 THE DEPTH AND MARINE DEPOSITS OF THE PACIFIC OCEAN. 



gave 40.4 and 43.1 respectively; small pelagic Forarainifera, fragments of 

 bottom-living Foraminifera, Fish teeth, coccoliths, rhabdoliths, and other 

 calcareous, horseshoe-shaped bodies. 



Residue : 58.2 per cent, dark brown : — 



Siliceous Organisms (1 per cent). Sponge spicules, Radiolaria. 



Miiierals (20 per cent), rounded and angular, mean diameter 0.2 mm., 

 volcanic glass, palagonite, felspar, manganese grains, phillipsite, magnetite. 



Fine Washings (37.2 per cent), amorphous clayey matter, with many small 

 mineral particles. 



No. 45. Station 167, 3rd November, 1899. 

 Lat. 20° 2' S. ; long. 144° 28' W. ; depth, 2524 fathoms. 



RED CLAY : chocolate color, extremely clayey. 



Calcium carbonate : 3.7 per cent, pelagic Foraminifera and their 

 fragments. Fish teeth, crystalline calcareous particles (dolomitic limestone 

 fragments). 



Residue : 96.3 per cent, chocolate colored : — 



Siliceous Organisms ( 1 per cent). Sponge spicules. 



3Iinerals (10 per cent), mean diameter 0.05 to 0.1 mm., angular and 

 rounded, volcanic glass (some fragments attain a diameter of 1 mm.), 

 palagonite, phillipsite in isolated crystals, twins, and aggregates, magnetite, 

 manganese grains, and other minerals too decomposed for determination. 



Fine Washings (85.3 per cent), amorphous clayey matter, with minute 

 mineral particles. 



No. 46. Station 172, 3rd November, 1899. 

 Lat. 19° 22' S.; long. 145° 47' W. ; depth, 2322 fathoms. 



GLOBIGERINA OOZE : dark brown, with light brown or yellow patches, 

 coherent, clayey ; has the appearance of a typical Red Clay, but the 

 percentage of calcium carbonate is too high. 



Calcium carbonate : 40.5 per cent, pelagic Forarainifera and their 

 fragments (large proportion very small), bottom-living Foraminifera, Echinoid 

 spines, coccoliths, rhabdoliths. 



Residue : 59.5 per cent, chocolate colored : — 

 Siliceous Organisms (1 per cent). Sponge spicules. 



Minerals (3 per cent), mean diameter 0.12 nnn., angular and rounded, vol- 

 canic glass, palagonite, manganese grains, plagioclase, phillipsite, magnetite. 



