18 BULLETIN iw, UNITED STATES NATIONAL MUSEUM. 



Station 271. — 3,240 fathoms. Red clay. Light brown, extremely 

 line mud. An occasional radiolarian; no other organic remains. No 

 mineral particles larger than 0.08 millimeter. 



Station 285. — 3,089 fathoms. Red clay. Many minute manganese 

 concretions. 



Station 296. — 3,274 fathoms. Red clay. Many small concretions 

 of manganese and crystals of phillipsite, single and crossed. 



Station 5i^.— 3,237 fathoms. Red clay. Extremely fine mud. No 

 niineral particles exceeding 0.08 millimeter in diameter. Gelatinous 

 masses containing great numbers of fragments of large diatoms. 

 {Coschiodiscus rexW?LW.\ch.) A few radiolaria. 



Station 331. — 2,997 fathoms. Red clay. Color, brown. No cal- 

 careous organisms. At least one-half of the washed sediment con- 

 sists of crystals of jDhillipsite. Many small nodules of manganese. 

 This specimen is unique in the preponderance of clear-cut crystals of 

 phillipsite. 



Station 335.-2,84:5 fathoms. Red clay. Light brown, very fine 

 mud. No calcium carbonate. A few radiolarians. Minute nodules 

 of manganese; a few crystals of phillipsite and glassy mineral 

 fragments. 



Station 336.-2,^24: fathoms. Red clay. Broken shells of foram- 

 inifera begin to appear. Active effervescence with acid. Distance 

 from preceding station about 11 miles; difference in depth, 421 fathoms. 



Station 338.-2,128 fathoms. Globigerina ooze. Fawn color. 

 Contains a large proportion of foraminifera, mostly broken and cor- 

 roded; a few coccoliths. Fragments of pumice; many concretions of 

 manganese of considerable size (6 millimeters), spheVulesof phillipsite, 

 and minute glassy fragments. 



Station 5^.-1,173 fathoms. Pure globigerina ooze. Color, 

 white, with slight shade of brown. Sediment composed almost 

 entirely of perfect foraminifera {Glohigerina, PulvinuUna, and 

 Orhulina), with rarely a grain of sand. 



Station 350.-2,24:0 fathoms. Red clay. Reddish-brown mud, con- 

 taining many foraminifera, diatoms (fragments of Ooscinodiscus), 

 manganese concretions of considerable size (6 millimeters), crystals 

 and spherules of phillipsite, and volcanic mineral particles. 



Station 352.-2,568 fathoms. Red clay. Only an occasional cor- 

 roded fragment of a foraminifer. The usual small manganese nod- 

 ules, crj^stals of phillipsite, and other minerals. 



Station 356.-2,897 fathoms. Red clay. Washed sediment very 

 fine, consisting of a few minute manganese concretions and an abun- 

 dance of single and crossed crystals of phillipsite.' 



Station 361.-2,268 fathoms. Red clay. Fawn-colored mud. 

 Washed sediment composed largely of manganese nodules of consid- 



