REPORT ON MATERIALS FROM THE RORTNGS AT FUNAFUTI ATOLL. 215 



Details. 



(189) [837, 838]. From 240 to 245 feet. The biokeu-up fraguieuts or rock-chips are somewhat coarse, 

 The foraminifera present are OrhifoUks sp. (fragments), Ca rpcnteria, I'inaporus haculahia, Calcurinu Itispiila, 

 PuJytreina iiiiniaa'Hin, AiiqjJnsfetjina Lessonii (very cominou), and Hetcrostcgina depresm. Echinid spines. 

 Alcyonarian spicules. Casts of PociUopora. Fragments of Cyclostomatous polyzoa. The foiaminifera are 

 now loose, but it can be seen that they have been cemented into the rock, and have been set free by the 

 breaking up of the rock by the drill. 



(190). From 245 to 250 feet. Fragmental material similar to No. 189. C/jrnhalojiora fabelh'furum, 

 determined by Mr. Chapman, JinpJiixfcr/ina, Hef crust fujina, alcyonarian spicules, and echinid spines, rare. 



(191). At 255 feet. Fragmental materials, fine. The greater proportion of the foraminifera present 

 Ijelong to yliiiphisfctjina Lessonii; there are a few examples of Orhifulites coinplanafa and Marginnlina ghihra. 

 tSome detached casts of corallites of PociUopora, alcyonarian spicules, and echinid spines. 



(192). At 260 feet. Similar to preceding. Orbitolites, Globigerina (rare), Awphisfegina, Heferostegina. 

 Casts of PociUopora. Fragment of Halimeda. 



(193-197). From 265 to 275 feet. Five samples of fragmental materials with the same general 

 characters. Aiiip)]mfpgina Lessonii is common to all; other and rarer forms are Orhitolitcs coinplanafa, 

 Texfnlaria siphonifera, Carpenferia monficnlaris, Gypsina glolmlus, Culcarina Impicla, and Heterostegina deprcssa. 

 Casts of PociUopora, fragments of perforate coral, perhaps Porifcs. Polyzoa fragments, alcyonarian spicules, 

 and echinid spines. 



(197 his) [839]. From 270 to 275 feet. Sample of broken-up angular fragments of rock, somewhat coarse. 

 Thin sections of some of the fragments show, under the microscope, Carpenteria, Polytrerna miniaceum, 

 P. pilanum and Amplnstegina ; the forms are not loose but cemented to the rock fragments. Fragments of 

 Styhphora and pieces of perforate coral structure. Echinid spines ; consolidated sediment with stellate 

 spicules of Leptodirmm. 



(198) [650]. From 275 to 280 feet. Length 35 millims. by 52 millims. in width. A nodular piece of 

 whitish, fairly hard, porous rock, consisting of foraminifera and fragmental materials in a matrix of calcite. 

 Orhifolifes, Discorbina, TruncatuUna, Polytrerna miniaceum, P. plannrn, Gypsina, Amphistegina. Alcyonarian 

 spicules. 



Depth from Surface, 280-330/ee^; Distmice Bored, 50 feet; Total Length of Core 



Obtained, 0. 



The only materials obtained from the 50 feet of boring between 280 and 330 feet 

 are the broken-up fragments of a fairly hard, whitish limestone obtained from the 

 boring by the sand-pumjo. The fragments are usually angular, the larger chips are 

 about 3 millims. in length by 2 to 3 millims. in breadth ; the smaller only particles of 

 fine dust. The rock consists of foraminifera, principally Amphistegina Lessonii ; 

 casts of corallites of PociUopora, rarely, fragments of Millepora, and of perforate 

 corals ; echinid spines and alcyonarian spicules. The broken-up materials indicate 

 that the rock is of the same character as that of the 50 feet above. The samples 

 do not bear any core numbers. 



Details. 



From 280 to 290 feet. The organisms recognisable in the sample are Amphistegina, casts of PociUopm-a, 

 alcyonarian spicules and echinid spines. 



From 290 to 300 feet. The samples of broken-up rock are very similar to the preceding ; thin microscopic 

 sections [840] were made from coarse fragments of white rock from 293 feet, which contained Orbitolites, 



