OCEANOGRAPHY OF THE PACIFIC. ' 17 



the proportion of foraminifera, which latter seems to be intimately 

 related to the depth. Foraminifera: Glohigerina^ Orhxilina^ Hasti 

 gerina, Pulvinulina^ Pullenia^ Miliolina, Ehreribergioia^ Oyclannmtiina^ 

 YirguUna^ Uvigerina^ Lagena^ Discorhina^ Polystomella, Wodosaria^ 

 SphmrcJidina. Coccoliths more or less numerous, rhabdoliths few; 

 sponge spicules; radiolaria not numerous except at station lT4; diatoms 

 few. Mineral fragments very few. 



Station 175. — 1,239 fathoms. This specimen vial contained only a 

 few brownish-black frag-ments of a manganese nodule. 



Station 185. — 2,757 fathoms. Red clay. Brown-gray. Ver}^ fine 

 mud, with a few sponge spicules, radiolaria, and an occasional diatom. 



Station 187. — 2,473 fathoms. Globigerina ooze. Color, light gray. 

 The washed sediment consists of broken foraminifera, radiolaria, dia- 

 toms, and a verj^ little fine sand. 



Station 189. — 1,813 fathoms. Globigerina ooze. Grayish-white. 

 Foraminifera: Biloculina, Orhulina., Piilvinulina., Uvigerina, GloM- 

 gerina.1 Nodosaria., Lagena, Piilleoiia, Yirgidina, Polystomella. Cocco- 

 liths and rhabdoliths not numerous; occasional small radiolaria and 

 diatoms. Mineral fragments very few. 



(B) MIDWAY ISLANDS TO GUAM. 



Station W5. — 2,167 fathoms. Globigerina ooze. Light brown. 

 Foraminifera mostly in fragments. A few radiolaria; many cocco- 

 liths. Mineral particles rare. 



Station W9. — 82 fathoms. Coral sand. Fragments of coral rock. 

 Foraminifera {Amphistigina)., polyzoa, and univalve mollusks. (This 

 is the only specimen from a sounding less than 100 fathoms.) 



Station 211. — 2,322 fathoms. Red clay. Color, light brown. Speci- 

 men consists almost exclusively of fine washings. A few broken 

 foraminifera, an occasional radiolarian, and the usual mineral frag- 

 ments. 



Station ^^5.^2,926 fathoms. Red clay. Total sediment consists 

 of fine washings, with an occasional radiolarian and sponge spicule 

 and a few small fragments of volcanic glass. 



Station 238. — 3,012 fathoms. Red clay. No efi'ervescence with 

 acid. No organic remains, except rarely a sponge spicule or fragments 

 of a radiolarian. The few mineral particles are minute, colorless, 

 transparent, vitreous fragments. 



Station 2^8. — 3,168 fathoms. Red clay. Light brown. A few 

 radiolaria; no other organic remains. No effervescence with acid. 

 Mineral particles very small, transparent fragments. 



Station 257. — 3,250 fathoms. Red clay. No calcareous organisms; 

 a few radiolaria and sponge spicules. A large sediment of mineral 

 fragments in great variet3\ Numerous small manganese nodules. 

 Crystals and spherules of phillipsite. 

 5106— No. 55—05 2 



