REPORT ON MATERIALS FROM THE BORINGS AT FUNAFUTI ATOLL. 209 



Depth from Surface, lbQ-i(5Q feet ; Distance Bored, 10 feet ; Total Length of Core 

 Obtained, 5 iriches ; Numbers of Cores, 138-141. 



The solid cores of this 10 feet of the boring are represented by a cylindrical mass 



and two rounded nodules of hard greyish-white limestone, having a total length of 



5 inches. In contrast with the large majority of the solid cores hitherto met with, 



which have been principally of corals, these cores are of consolidated fragmental 



materials with numerous foraminifera and also detached joints of Halinieda. The 



organisms are well preserved and are cemented together by calcite. A sample of 



loose materials from this depth consists of the usual angular fragments of whitish rock 



with a few foraminifera. 



Details. 



(138). Sample of fragmental materials containing Amphistegina Lessonii, Tinoparus baculutus and 

 alcyonarian spicules. 



(139, 140). Two nodular pieces of hard white rock, with a total length of 54 millims. Apparently 

 of consolidated fragmental materials, but their character is not distinguishable without a microscopic 

 section. 



(141) [520, 521, 522]. Length 80 millims. by 80 millims. in diameter. Cylindrical core, of dense rock 

 with a few small cavities. Of fragmental materials and foraminifera, belonging to OrhitolUes, Textularia 

 rugosa, Truncakilina, Planorhulina, Discwhina, Cristellaria, Glohigerina, Carpenieria, Polytrema, Gypsina, 

 AmiMstegi'iia and Ueterostegina . Hulimeda abundant. Stellate spicules of LqAodimim. 



Depth from Surface, 1&Q-17 feet ; Distance Bored, 10 feet ; Toted Length of Core 



Obtained, 0; Numbers of Cores, 142, 143. 



No solid cores were obtained from this 10 feet of the boring, only loose fragmental 

 materials, two samples of which are referred to below. 



Details. 



(142). Fine whitish powdery material of sub-angular and rounded grains, with Tinoporus baculatus, 

 Amphistegina Lessonii, alcyonarian spicules, polyzoa, and Serpula tubes. 



(143) [849]. Coarse-grained rock fragments, mostly stained a reddish tint, due to the iron of the 

 drilling apparatus. A large majority of the grains are angular chips or splinters of rock ; the organisms 

 are often fractured and have lost their fresh appearance. The commonest forms are Amphistegina and 

 alcyonarian spicules. The latter are in process of decay. The tubercles have mostly disappeared and the 

 surfaces are now of powdery material. Other foraminifera determined by Mr. Chapman are Anumalina 

 ptolymorpha, Tinoponis baculatus, Gypsina sp. nov., G. vesicularis, Polytrema miniacewm, and Carpenteria. Casts 

 of fragments of MiUepora and Pocillopm-a, and pieces of perforate corals. Polyzoa, ostracoda, echinid 

 spines, rare, and broken joints of Halimedu. Small pieces of the cementing calcite are still attached to 

 some of the oreanisms. 



'e' 



Depth from Surface, 170-180 feet; Distance Bored, \0 feet ; Total Length of Core 

 Obtained, 1 foot 4 inches ; Numbers of Cores, 144-150. 

 The solid cores are cylindrical or irregular nodules of greyish- white, hard, some- 

 what porous or slightly cavernous limestone, principally of foraminiferal and 



2 E 



