48 



BULLETIN OF THE 



meats of Echinoderms aud Gasteropod and Lamellibrauch sliells, calcareous Algaj, 

 coccoliths, aud the followiug Foraminifera : — 



Hcsidue, 29.31. per cent, dirty brown, consists of Minerah [10.00], m. di. 

 0.05 mm., (angular) quartz, hornblende, mica, felspar, olivine, scoriee, small 

 fragments of rocks. Siliceous organisms [7-00], Sponge spicules and Radiola- 

 riaus. Fine washings [12.34], argillaceous matter, fine mineral particles, and 

 fragments of siliceous organisms. 



Station 138. — 0(T Santa Cruz, January 7, 1879. Depth, 2,375 fathoms. Surf, 

 temp. 7r)?/. Bot. temp. 3S^°. A light brown Globigeriua ooze, slightly coherent, 

 pulverulent. 



Carbonate of Calcium, 63.54 per cent, consists of Gasteropod and Lamelli- 

 brauch shells (larval forms), Ostracode, Pteropod, and Heteropod shells, Alcy- 

 onium spicules, Eeliinoderm fragments, coccoliths aud rhabdoUths, aud the 

 following Foraminifera : — 



Globigerina rubra 



G. dubia 



G. conglobata 



G. sacculifera 



G. bulloides, var. triloba 



G. (^Orbulind) universa 



Pulrinulina menardii 

 Pulcinulina michcliniana 

 P. canariensis 

 Planorbulina sp. 

 Miliolina bicornis 

 M. circularis 



Residue, 36.46 per cent, red, consists of Minerals [20.00], m. di. 0.2 mm., 

 several fragments of mica scliist 3 to 5 mm. in diameter, felspars, quartz, mica, 

 hornblende, magnetite. Siliceous organisms [5.00], Sponge spicules. Fine 

 washings [11.46], amorphous clayey matter, fine mineral particles, and frag- 

 ments of siliceous spicules. 



