242 DR. (4. J. HINDE. 



(41a). Length 100 niillims. Whitish-grey, hard, for the most part, compact, with some cavities. Very 

 little to be seen with lens. Casts of I'vciUopoiv, and a perforate coral, Axfrcopwa (?). Undulating layers of 

 Liflwthamnion and Poli/treniaCl), Aniphisteginu. 



(42a) [695]. Length 75 millims. Whitish-grey, hard and dense rock. Some small casts of perforate 

 corals, encrusted by Lifhofhanmion. Corals infilled and replaced by crystalline dolomite, and not 

 determinable. Core in part of sedimentary material cemented liy dolomite. Patches of ]'ol//frnii((, but 

 they are less prominent than the Lifliofliiiiiinion. Spirolonilinu, and Aiiiplii^legmi. Scrpiila-tnhes. Casts of 

 gastropods. 



(43a). Length 113 millims. Greyish-white, mottled, hard and dense. Prominent nodules of Pdh/hnria 

 jo/frnwrn, and between these the core is packed with AnipJiisfci/inn and Hrlcfasf/'i/ina. Alcyonarian spicules. 

 Cast of PoriUojwia. 



(44a). Length 110 millims. Whitish, very hard and dense, with occasional small cavities. Large 

 nodules of Poli/tir'iiia and other foraminifera, as in the preceding core. Cast of Astrsean coral, not 

 determinable. «SV?p/ia-tubes. 



(45a) [696], Length 100 milHms. Whitish, hard core of the same character as 43a and 44a. Perforate 

 coral .surrounded by a thick layer of Pohifinna jildninu, and some thin alternating layers of Lifhothai/iitiun. 

 Porillopora, Porifes. Corals replaced bj? crystalline dolomite, and very indistinctly shown. The inter- 

 spaces between the corals are packed with foraminifera. The following have been deteimined l)y 

 Mr. Chapman : (hhitolUcs, TexfuJarin, (tJohigcrimi, rare, (hjpMna, Ainphideyina, and Hi'tcioatcginu. 

 Alcyonarian spicules. Serpvla-tvibes. Clionn-horings, Haliiimla. 



46a. Length 90 millims. Whitish-grey, hard rock. Cast of Porifes. Nodules of I'liliitrnini and other 

 foraminifera, the same as in the preceding core. 



(47a) [697]. Length 110 millims. Whitish-grey, hard and dense rock. Casts of I'ori/lo/tnni nud J'orlics 

 enclosed by thick layers of Poli/fn-uui, with alternating layers of Lillii>tli(tiiiiuoit. Or/iilolifrs roitiphninta, 

 (lillimin iliftcu.<, Aiiij/hisfcf/ina and Ilc/crosfcgimi. Echinid plates. Cast of lamellibranch. 



(48a). Length 70 millims. AVhitish-grey, hard, in places porous. PoriIli)/ii>m. I'nli/firiiifi nodules and 

 other foraminifera, as in the preceding core. 



(49a) [698]. Length 100 millims. Whitish-grey, hard, partly porous, dolomitic limestone. Astrsean 

 coral, casts of small Madrqiom and other corals not determinable, which are overgi'own iuid enclosed by 

 Pohjfreina plamnii. The corals are almost entirely replaced by crystalline dolomite. The core is mainly 

 composed of foraminifera cemented by dolomite. Orbitolik.'i common, (ryp»ina, Aiiiplt'D^teglna, very 

 numerous, Hcfcrosfegina. Pxhinid spines and plates. <sV/y//»//rt-tubes, with thick walls showing concentric 

 fibrous layers. Lifhofhuiiiiiioii, encrusting. 



(50a) [583]. Length 104 millims. Whitish-grey, hard, porous, and partly cavernous dolomitic limestone. 

 Several casts of small corals, inchiding an Astraean and specimens of Turhinaria, the second time this genus 

 has been noted in the cores. The corals, as usual, encrusted by Pnh/treiini. Foi'aminifera similar to those 

 in preceding core, with the addition of Carpcntcrm. 



(51a) [699, 700]. Length 94 millims. Grey, hard, dolomitic limestone, like the preceding. Casts of 

 an Astraean, Porifex and Turhinaria, encrusted by Poh/freina planinii. A considerable number of 

 foraminifera, Orbitolites, Gijpsina ghhuln>i, G. discus, Globigerina, AiiipJiisfegina, and Ilelrrosfegina. Echinid 

 spines. Alcyonarian spicules, but little altered in fossilisation ; thin sections under the microscope are of 

 a brownish tint, and show the structure of fibres radiating from the central axis. 



(52a) [701]. Length 90 millims. Greyish, speckled v/hite, hard, porous, and also cavernous in places. 

 Several corals encrusted b\^ Polytrenia pAanmii. Casts of Podllopora, an undeterminable Astrajan, Cydoaeris, 

 and Turhinaria. The corals are replaced, and the interstices infilled with the crystalline dolomite. 

 Foraminifera, except Ghdiigrri.na, the same as in the preceding coi'e. Cheilostomatous polyzoa. 



(53a). Length 52 millims. Dolomitic, like preceding. Casts of small examples of an Astraean coral, also 

 of Turhinaria, mostly encrusted by Polyfrt-ma. The larger part of the core consists of foraminifera, as 

 in 52a. 



