yOH DK. (4. J. llINDll 



(1). 32) [-iUG]. Jjcngth 70 millims., width 62 millims. Rock like preceding. Chiefly of Marlrfjioru, with 

 ii fragment of Muntipora. Sjiirorbi^. LithotJiainnwu. 



(D. 33). Length 45 millims., width 46 millims. A nodular fragment of Madrcjtura. 



(D. 34) [425]. Length 12 millims., width 28 millims. A small irregular fragment of whitish-grej' 

 limestone, consisting of an undetermined coral (1) similar to that in D. 9. Poli/treiiia jjlanutit. Sjtirorhis. 

 Litliothai union. 



(D. 35) [407]. Length 82 millims., width 78 millims. Cylindrical core, greyish-white, compact, with 

 large cavities. Al>out one-half of the core consists of Mailr('[iora encrusted hy Lifhufhamnion, and on this 

 latter Montiponi is growing. Part of surface pitted, with S^iirorhis attached. 



Depth from Surface, 50-GU feet; Distance Bored, iO feef ; Total LeiKjfh of Core 

 Obtained, o feet 7 incites; Numbers of Cores, D. 36-D. 57. 



Cylindrical cores and irregnlar n(xliiles ol" cream-tinted or greyish, hard, mostly 

 compact, limestone, similar to the preceding. The rock, for the most part, consists 

 of Madrepora with Montij>o)-a. Porites, Astrsean coral and Mdlepora. The corals are 

 now generally infilled with crystalline fihrous material very similar to the actual coral 

 structure, so that they are very ohscurely shown. The corals are extensively hored 

 by Gliona and other perforating organisms, and usually encrusted by Pohjtrema 

 plmiurn and Lithoth amnion. Only a few foraminifera are seen in the microscopic 

 sections, they belong to Orbitolites, Ccupenteria, and (rypsinct inJtcerens. S^nrurbis 

 is plentiful, attached to the outer pitted surfaces of the masses of coral. Leptochnum 

 stellates. Halirneda. rare. 



Details. 



(I). .'Se). Length 118 millims., width SO millims. An irregidar ukiss of greyish, hard, compact 

 limestone, with pitted outer surface. Half of the mass consists of Mdi/rr/mni, and half of /'i>ritr.<, with a 

 thin layer of LitJiothamnion between them. S/iintrhis. 



(D. 37). Length 54 millims., width 78 millims. Cylindrical core of rock similar to preceding, ver}- 

 cavernous. It consists of Madn'iiora. Tart of outer surface pitted, and with Spirorbis attached. 



(D. 38). Length 54 millims., width 68 millims. About one-third of the cylindrical core present. It 

 consists of I'oritr.^^ now infilled with crystalline material and hardly recognisable. 



(D. 39) [408]. Length 70 millims., width 68 millims. Cylindrical core of greyish, hard, compact rock. 

 Greater part of Madrqivru, encrusted l)y Lifhof/iaiiuiion on which I'oiitcx has grown. Pitted surface M'ith 

 Spirorhis. Orliifolife-'^, Lfjitorliniuu stellates. llaJiincdii. 



(D. 40). Length 16 millims., width 34 millims. An irregular fragment of whitish limestone, consisting 

 of MiUepora in immediate contact with Mudrqiora . 



(D. 41). Jjength 25 millims., width 60 millims. A compressed nodule of rock of the same character 

 and with the same organisms as the preceding. 



(D. 42). Length 18 millims., width 28 millims. A fragment of limestone with Mailrcjioiu (1). 



(D. 43). Length 42 millims., width 47 millims. A rounded nodule worn l)y the drill, of greyish, hard, 

 very dense, limestone, consisting of Miulrepoia. 



(U. 44). Length SO millims., width 82 millims. Core cylindi'ical, al)0ut two-thii'ds preserved, of the 

 same limestone as preceding. The rock is entirely of Madrcjiora. 



(D. 45) [409]. Length 30 millims., width 73 millims. An irregular flattened nodule of cream- 

 coloured limestone, cimmosed of Mndrcpora ronteda, much bored liy (Tidhii and other organisms, and 



