310 DK. G. J. ill^DK. 



preceding, partly compact, parti}' porous ; it consists of Madrqiora ronffcfa, -with the coenenchynial 

 platforms distinctly shown, and the interspaces vacant. Jinjihistni'tnu, LejitorUmuii stellates. 



(I). 62-D. 64) [411]. Xodules and cylindi-ical core of cream-coloured limestone, with a total length of 

 132 millims. Cores of cream-coloured limestone, consisting of Mnth-qiora nrnfcrfu, encrusted by Ufho- 

 fhamnion. PoIi/f/rjiKi phtiinin. 



(D. 65) [428]. Length 5.3 millims., width 76 nnllims. Cylindrical core, partially worn by the drill. Core 

 principally of Monti iioru, the structui'e faii'ly well shown. The coral encrusted by Lithothaiiinion. (hintolite^, 

 Polytreiiiu iiiiniiuriiiii. Echinid spines. Leptodinuiii stellates. (Vwflfr borings. 



(D. 66) [412]. Length 54 millims., width 78 millims. Cylindrical core of greyish-white, hard limestone, 

 partly compact, partly porous, consisting of Mudrcinn-a nintcrta. I'lihifrcma ininiacriiiii, .4iiij)/n.<f/'(/init Les^onii, 

 Spirarhia, t'liomt boi'ing.s. Encrusting Lithatliuiitniou. 



(D. 67) [41;3]. Length 30 millims., width 80 millims. Cylindrical core of gre3'ish-wliite, compact, hard 

 limestone, upper surface pitted, and \vith S/iirorhis attached. Neaily altogether of Mudirpoia cuniecta, 

 encrusted with J'oli/frrniti planiiiji and LitliufJidiiinion, and perforated by Clionu and other organisms. The 

 coral is filled up solid with sclerenchj'ma, the borings are either vacant or infilled with crystalline material 

 and sediment. Poh/trenui iiiiniairuni. Echinid sjiines. Lcptoclinuin stellates. 



(D. 68). Length 58 millims., width 75 millims. Limestone, similar to preceding. One moiety of the 

 core of I'ociUopora, in good preservation, the other of ^Lad repora rontccfa. S/drorlds. 



(I). 69). Length 40 millims., width 67 millims. An irregular nodule, wornln' the drill, of limestone, like 

 the pi'cceding, consisting of Madrcjiorti ninfrc/a^ enci'usted partly by LHhothatiiidun. 



(I). 70). Length 38 millims., width 70 millims. A nodule consisting of Madrc/wra, to which a piece of 

 Mdidijioiu is attached. S/iiror/d-^, Scr/Jii/d-twhca. Kneriistini;' IJ/liofliiuiiiiifin. 



(1). 71). Length 23 millims., width 52 millims. A fragment of the usual greyish-white limestone, worn 

 l)y the drill. It consists of Madrcpwa ronlccfa, l)oicd by Clioita. 



(1). 72) [418]. Length 24 millims., width 48 millims. A flattened nodule of the usual hard limestone, 

 the surface pitted, and with Sjiimrlds growing on it. Madrrjiimi rtudi'cta, perforated liy ('lioini, iV;c., the 

 excavations now infilled Mith fine consolidated sediment containing numerous detached stellate spicules of 

 Leptodinuiii. Orliitalites rare, J'oli/trciiKi iiiiniaceiun, 1\ /lUinuiii. Small gasti'opods. lAfhothaiirnion. The 

 minute structure of the coral is shown in the microscopic section. 



(I). 73). Length 33 millims., width 52 millims. A nodular fragment of Madirpura cmtecfa. 



(D. 74) [414]. Length 37 millims., width 52 millims. An irregular nodule of greyish-white, compact 

 limestone, mainly of Madrepora runtfcfa, with an Astra'an coral, Orbirdla C?), attached. OrtiituUtes, 

 < kirpenterm, I'oJi/ln'inii iiiinidmnii, and /'. /ildinnn. Sjdrorlns. JAthot/iuntnion. 



LTnconsolidatcd line material, line, light, greyish in tint, largely of fragmentary foraminifera, 

 alcyonarian spicules, and polyzoa. The foraminifera belong principally to Orhitolites, J'lanurhidina, 

 'rino/iorus, and Ainjiliixtnjiiui^ with other genera enumerated above, many of which are only represented by 

 single specimens. Also calcisponge spicides, echinid spines, ostracoda, and lamellibranchs. 



(6) Notes on the Matekials prom the Lagoon Boring, " L." 



The borings carried out by Mr. G. H. Halligan beneath the floor of the lagoon at 

 Funafuti were situated about 1-g miles west of the IVTission House, where the depth of 

 water was 101 feet at low-water spring tides. Two borings were made; the first 

 reached a depth of 144 feet l^elow the floor of the lagoon, and the second 1 1^^ feet. 

 In both cases the attempts to penetrate deeper were baffled by meeting with solid 

 limestone, too hard for the boring apparatus to pass through. 



