24 BULLETIN 55, UNITED STATES NATIONAL MUSEUM. 



i (D) GUAM TO YOKOHAMA, JAPAN. 



Station 990. — 859 fathoms. Coral sand. Color, gray. Fragments 

 of coral rock. Many foraminifera; a few racliolaria. Many small 

 manganese concretions and particles of palagonite, the latter being 

 unusually numerous. Mineral fragments in quantity, angular, many 

 of them green. 



Station 995. — 2,091 fathoms. Volcanic mud. No calcium carbo- 

 nate. No organic ' remains. Very little fine washings. Sediment 

 principally volcanic glass. 



Station 1000. — 1,947 fathoms. Volcanic mud. Very little fine 

 mud. An occasional foraminifer and radiolarian. Sediment mostly 

 fibrous volcanic glass. 



Station 1006. — 1,847 fathoms. Volcanic mud. Brownish gray. 

 Foraminifera few; radiolaria rather numerous. Mineral matter fine 

 volcanic glass. 



Station 1010. — 2,082 fathoms. Volcanic mud. Few foraminifera. 

 Sediment, fine angular particles of volcanic sand. Very few of the 

 fibrous fragments of glass so plentiful at stations 1000 and 1006. 



Station 1016. — 2,375 fathoms. Volcanic mud. Color, dark brown. 

 About 50 per cent of fine washings; few foraminifera. The remainder 

 consists of fine angular particles of volcanic sand. 



Station 1026. — 2,025 fathoms. Volcanic mud. Grayish brown. 

 Few foraminifera; radiolaria rather numerous. Sediment chiefly 

 angular mineral fragments in great variet3^ Fine washings 35 per 

 cent of total sediment, but a large proportion of these washings con- 

 sists of minute fragments of minerals. 



Station 1036. — 2,155 fathoms. Volcanic mud. Light brown, finely 

 granular, nonadhesive mud, containing a few foraminifera and a 

 relatively small amount of amorphous matter. The remainder is 

 made up of fine angular mineral fragments. 



Station lOJfd. — 2,330 fathoms. Volcanic mud. Dark brown. No 

 foraminifera, a few radiolaria, about 25 per cent of amorphous matter 

 and volcanic sand. 



Station 1055. — 2,028 fathoms. Volcanic mud. Dark brown. No 

 foraminifera or diatoms, radiolaria rather numerous. Washed sedi- 

 ment consists of manganese concretions and angular, colorless, trans- 

 parent mineral fragments; many palagonite particles. 



Station 1065. — 1,321 fathoms. Volcanic mud. Light gray, gran- 

 ular, nonadhesive. Many foraminifera and siliceous casts; occasional 

 radiolaria; much fine volcanic sand in angular particles. 



Station 1071).. — 483 fathoms. Volcanic sand. Specimen consists of 

 comparatively coarse volcanic sand, with a few foraminifera. 



Station 108Jf. — 2,313 fathoms. Volcanic mud. Light brownish 

 gray, granular. An occasional foraminifer; many radiolaria. Much 



