50 BULLETIN OF THE 



Carbonate of Calcium, 76.20 per cent, consists of otoliths of fish, Serpula tubes, 

 Ostracode, Pteropod, and Heteropod shells, fragments of Polyzoa, Echiuoderms, 

 calcareous Algae, and the following Poraniinifera : — 



Qlobigerina bulloides Cristellaria sp. 



G. buLoideSy var. triloba Textularia conica 



G. rubra T. agglutinans 



G. infiata Cassidulina crassa 



G. conglobala Clavulina parisiciisis 



G. sacculifera Verneuilina spinulosa 



G. ifirbulind) universa Haplostiche soldanii 



Pulvinulina menardii Nonionina umbilicatula 



P. menardii, var. tumida Amphistegina mamillata 



P. micheliniatia Orbiculina adunca 



P. sp. Articulina sagra 



Sphceroidina bulloides Planispirina celata 



Poli/trema rubra Spiroloculina limbala 



Planorbulina mediterranensis Miliolina seminulum 



Discorbina sp. M. macilenta 



Truncatulina lobatula M. linneeuna 



T. sp. M. aggludnans 



Polymorphina sp. Biloculina ringens (very small). 



Residue, 23.80 per cent, yellowish green, consists of Mitterals [10.00], ni. di. 

 0.25 mm. (angular), quartz, hornblende, felspar, magnetite, augite, olivine. Sili- 

 ceous organisms [5.00], Diatoms, Radiolarians, Sponge spicules, and a few pale 

 glauconitic casts. Fine washings [8.80], argillaceous matter, fine mineral par- 

 ticles, fragments of siliceous organisms, and greenish organic matter. 



Station 275. — Off Barbadoes. Depth, 218 fathoms. Surf. temp. 80^. Bot. 

 temp. 52^°. A Pteropod ooze or Toraminiferal sand, somewhat coherent, pul- 

 verulent, granular, dries into lumps which are easily broken by the pressure of 

 the fingers. 



Carbonate of Calcium, 38.09 per cent, consists of otoliths of fish, Gasteropod, 

 Lamellibranch, Pteropod, Heteropod, and Ostracode shells, fragments of Echiuo- 

 derms and Polyzoa, Alcyonium spicules, coccoliths, and the following Foram- 

 inifera : — 



Globigerina rubra Candeina nitida 



G. dubia Sphesroidina dehiscens 



G. infata Pullenia obliquilorulata 



G. conglobata Pulvinulina menardii 



G. sacculifera P. menardii v&x.Jimbriata 



G. (equilateralis P. micheliniana 



G. bulloides var. triloba Biloculina ringens 



G. (jOrbulina) universa B. depressa 



