390 PEECY SLADEN TEUST EXPEDITION. 



No. 44. 



Anchorage at Takamaka, Lagoon of Salomon Atoll; dej)tli, li fathoms. 



CORAL MUD : white, fine-grained, incoherent. 



Calcium Carbonate : 94 per cent., bottom-living Foraminifera (mostly fragmentary), fragments of 

 Corals, I'teropods, Heteropods, Gasteropods, Lamellibrauchs, and Echiuoderms ; Polyzoa, 

 Alcyonarian spicules. 

 Kesidue : 6 per cent. : — ■ 



Siliceous Oryanisms (T per cent.) : Sponge spicules. 



Minerals (trace) : a few minute grains of what appear to be quartz, felspar, hornblende, and 



white mica. 

 Fine Washings (5 per cent.) : amorphous clayey matter. 



No. 45. 



Anchorage, Lagoon of Diego Garcia ; depth, 13 fathoms. 



CORAL MUD : white, fine-grained. 



Calcium Carbonate : about 95 per cent., bottom-living Foraminifera, Coral fragments, Lamelli- 

 branehs, Gasteropods, Pteropod fragments, Eehinoid shell fragments and spines, Ostracodes, 

 Alcj'onarian spicules. Tunicate spicules, one or two Coccoliths. 

 Residue : about 5 per cent., greenish : — 



Siliceous Organisms (2 per cent.) : principally Sponge spicules with one or two Diatoms. 

 Minerals (trace) : a few mineral grains, including one angular grain of quartz O'l mm. in 



maximum diameter. 

 Fine Washings (3 per cent) : amorphous clayey matter, with minute siliceous splinters. 



B. — Samples not fully desceibed, but sueficing to indicate the 

 PROBABLE Type of Deposit. 



No. 1. May 15, 1905. 

 Lat. 2° 45' S., Long. 75° 53' E.; depth, 2129 fathoms. 



GLOBIGERINA OOZE : From this station there is only a small quantity of material, which has 

 apparently been subjected to a certain amount of washing, but it indicates that the deposit 

 is Globigerina Ooze. The material consists almost entirely of pelagic Foraminifera, many 

 of large size and many broken ; a good many Radiolaria and Sponge spicules, with a few 

 Diatoms and arenaceous Foraminifera ; no minerals were observed. 



No. 2. July 6, 1905. 



Lat. 5° 23' 30" S., Long. 72° 29' 0" E. ; depth, 7G9 fathoms. 



GLOBIGERINA OOZE : The material from this station is incoherent, appearing as though all the 

 fine particles had been washed away. It probably indicates a deposit of Globigerina Ooze, 

 since it consists almost entirely of pelagic Foraminifera, with a few bottom-living forms, 

 Pteropod fragments, Eehinoid spines, Fish otoliths ; Sponge spicules and fragments. 



