THE DEPTH AND MARINE DEPOSITS OF THE PACIFIC OCEAN. 131 



pods and Lamellibranchs, Heteropods, Pteropods, Tunicate spicules; minute 

 particles of felspar, obsidian, magnetite, and manganese. 



Station 145, 3Uth October, 1899. 

 Lat. 18° 36' S. ; long. 139° 14' W. ; depth, 1725 fathoms. 



GLOBIGERINA OOZE : cream colored, granular, incoherent ; has the ap- 

 pearance of having been washed ; contains Coral fragments, pelagic and 

 bottom-living Foraminifera, otoliths, Ostracodes, Echinoid spines, Pteropods, 

 Mollusc-shell fragments, Tunicate spicules ; minute particles of obsidian 

 observed. 



Station 147, 31st October, 1899. 

 Lat. 19° 17' S. ; long. 138° 54' W. ; depth, 1688 fathoms. 



GLOBIGERINA OOZE : cream colored with black grains (manganese), 

 granular, incoherent; appears to have been washed ; contains pelagic Fora- 

 minifera and one or two bottom-living forms ; the manganese particles 

 vary from the merest grains up to 5 mm. in diameter, and many of them 

 have a brilliant black shining fracture, with mammillated external portions. 



Station 148, 31st October, 1899. 

 Lat. 19° 16' S. ; long. 138° 49' W. ; depth, 636 fathoms. 



PTEROPOD OOZE or CORAL SAND: cream colored, granular, inco- 

 herent ; appears to have been washed ; consists of Coral fragments, Ptero- 

 pods, Heteropods, pelagic and bottom-living Foraminifera, Alcyonarian 

 spicules, Echinoid spines, otoliths, Ostracodes, Tunicate spicules; minute 

 particles of obsidian and grains of manganese observed. 



Station 149, 31st October, 1899. 

 Lat. 19° 23.5' S. ; long. 138° 46' W. ; depth, 860 fathoms. 



GLOBIGERINA OOZE (?) : very little material, consisting of pelagic For- 

 aminifera, with grains and particles of manganese. 



Station 150, 31st October, 1899. 

 Lat. 19° 27.5' S. ; long. 138° 44' W. ; depth, 486 fathoms. 



CORAL SAND : incoherent ; consisting of fragments of Corals, Molluscs, 

 Pteropods, Heteropods, pelagic and bottom-living Foraminifera, Echinoid 

 spines, Alcyonarian and Sponge spicules, etc. 



