200 DR. G. J. HINDE. 



apparently in position of growth. The interspaces of the coenenchyma in this specimen as well as the 

 coralliLes of the branches are largely infilled with sclerenchyma or sediment. 



Depth from Surface, 40-50 feet ; Distance Bored, 1 feet ; Total LengiJi. of Core 

 Obtained, 1 foot 1 micA ; Nuvihers of Cores, 56-59. 



The only cores obtained from this 10 feet of the l^ore consist of irregnlar fragments 



of whitish -grey, hard, coral rock, and massive blocks of Madrepora contecta, in the 



same condition of preservation as those previously referred to (Cores 13, 52). Otlier 



corals present belong to Stylophora and Pocilhpora. Detached spicules of alcyonaria, 



echinid spines, Serpida, Spirorhis, Polytrema miniaceum, LitJiothainiiion, branching 



and encrusting. 



Details. 



(56). Length 40 niillims. An irregular fragment, consisting of pieces of coral and other organisms 

 agglomerated together. Sfi/lophora, PoriUopnm, alcyonarian spicules, echinid spines, plates of Cirhtris, 

 SrrpiiJa, Spinirliis, P. miiiiareuin. Branching and encrusting Litluifhainiiioii. 



(57). Length 66 millims. Fragments of rock with Sl/i/loplinra, echinid spines, <Szc. 



(58). Length 87 millims., diameter 103 millims. A Ijlock of Maihrpura ronfcrfa, with the interspaces 

 largely filled up with sclerenchyma and carbonate of lime. The upper and under portions of this block 

 show eroded and pitted surfaces to which Spirorhix and Cui-pcnfcria imnfifulam are attached. 



(59). Length 138 millims., diameter 102 millims. Massive cylindrical core of Madrepora roidcctn. The 

 ccenenchymal interspaces of the interior of the coral are for the most part empty. The upper surface is 

 uneven and covered with small pits, the work probably of boring organisms, and in these numerous 

 individuals of a small Spirorhis are fixed. The direction of the l)ranches indicate that the coral is in its 

 position of growth. 



Dejith from Surface, 50-(i0 feet ; Distance Bored, \0 feet ; Total Length (f Core 

 Obtained, 1 foot 2 inches ; Numbers of Cores, 60-67. 



The cores consist of nodular hnups of cream-coloured, hard, dense coral rock, mostly 

 so infilled with sclerenchyma and other materials that the character of the organisms 

 is obscured ; Astrrea, Madrepora, and Montipora (?) are present. Stellate spicules of 

 Leptoclinum, Carpenteria, and Gypsina. Encrusting Litliotlianhni.un. 



Details. 



(60) [511, 512]. Length 62 millims. A lump of Modrcpom rontcrla (1), the structure nearly entirely 

 concealed. 



(61) Length 35 millims. A flattened lump of Madrcpirrd. sjj., the coral now filled in nearly solid. A 

 central cavity, probably a boring, filled in with white incoherent powder. Lower surface with pittings and 

 Spirorhis. Folyfrcina iniimccnm. 



(62) [628]. Length 40 millims. A solid lump of Madrepora encrusted by successive thin layers of 

 IjUhofhamnvm. The coral interspaces partly filled with prisms of " conchite," partly with fine consolidated 

 sediment containing Lepforlinum stellates, Carpenfma and Gi/psinu. The minute structure of the coral is 

 preserved, also the delicate ramifications of boring algae. 



(63). Length 35 millims. A rounded nodule of an obscure coral, probably Moitfipuni. 



(64) [620]. Length 35 millims. A rounded nodule of Adnea sp. The minute structure shown in the 



