167 



8. OCEANIA {AND VARIOUS ISLANDS), 



Anon. Japanese Mines. Quart. Journ. Sci. n. s. vol. vi. pp. 433- 



440. 

 Notice of coal and copper mines, from a Report by F. P. Plunkett. 



. The Cruise of the ' Challenger.' Nature, vol. xiv. pp. 93-103. 



Describes the white granular limestone of the Bermudas. Sketch cs 

 of blown sand rocks and of a sand glacier are given. A large quantity 

 of pumice was dredged between Yokohama and Honolulu. 11. E., Jun. 



Balfour, Dr. I. B. General Remarks on the Geological Structure 

 and Flora of the Mascarene Islands, liej). Brit. Assoc, for 1875, 

 iSi'ctlons, p. 157. [See Geological Record for 1875, p. 165.] 



Birgham, Fr. Die Insel Hawaii und ihre Vulkanc. [Hawaii and 

 its Volcanoes.] Mitth. geol. Anst. Bd. xxii. p. 301.' 



Buchanan, Gt, Y. Preliminary Report to Prof. Wyville Thomson, 

 on Work (Chemical and Geological) done on board H.M.S. ' Chal- 

 lenger.' Proc. It. Soc. vol. xxiv. pp. 593-023. 



Part is devoted to " Observations made on shore in some of the 

 islands visited " (p. Oil). St. Vincent (Cape Verde group) consists 

 of intcrbcdded igneous rocks, a calcareous deposit in the low ground 

 (formed of shells, corals, and pebbles), and sand dunes. St. Paul's rocks 

 consist chiefly of serpentine. St. Michael's Mt. (Ferando Xoronha 

 group) is formed entirely of phonolite. Rat Island, of the same group, 

 consists of massive basaltic rock overlain by calcareous sandstone on 

 its E. side. Booby Island is formed of a similar sandstone; and 

 Platform Island consists of a mass of perfect basaltic columns. The 

 three islands of the Tristan d'Acunha group consist chiefly of volcanic 

 rocks ; there is a well-marked 35-ft. raised beach in one of the small 

 islets composing Nightingale Island. Marion Island, in the S. Indian 

 Ocean, is composed of a foundation of older igneous rocks, ruptured and 

 overlain by recent volcanic matter. Kerguelen Island is formed of flat 

 basaltic layers, from 10 to 12 feet thick, pierced by '' necks " of con- 

 glomerate and cylindrical masses of phonolite. A full account of this 

 island is given. Heard Island is volcanic, and is traversed by glaciers. 

 The abrading action of blown sand is well shown on some of tlie rocks 

 of this island. R. E., Jun. 



Bulger, Lieut.-Col. G. E. A visit to Port Plair and Mount Harriet, 



Andaman Islands. Canad. Nat. vol. viii. no. 2, pp. 95-103. 

 The Andamans are surrounded with coral-reefs. Ross Island con- 



