170 / GEOLOGY. 



reef, but the moimtains generally run down to the sea, and are fol- 

 lowed by a small shore reef. The coast line is but little broken up. 

 Lesson Is. is a cone-shaped active volcano. B. E., Jun. 



Prestoe, H. On the Discovery of a Eoiling Lake in Dominica, W. 

 Indies. Proc. R. Geogr. Soc. vol. xx. pp. 230-232. 



The boiling lake in the SoufFriere Yalley " is a gigantic solfatara, 

 with, apparently, an excess of water over the ejective power exerted by 

 its gases and heat." Ebullition is confined to one point at the S.E. 

 part of the lake. 11. E., Jun. 



Schneider, Dr. Geologische Uebersicht liber den holliindisch-ostin- 

 dischen Archipel. [Geology of Dutch E. Indies.] JaJirb. Ic.-lc. 

 geol. Reichs. Bd. xxvi. pp. 11.3-134, tab. 5, 6 (geological maps). 

 Gives a short account of the formations represented, and a list of 

 rocks, minerals, and ores, with their mode of occurrence. A. sketch 

 map has been compiled from the surveys of the Dutch Mining Engi- 

 neers and the author. 11. L. J. 



Sidebotham, — . On Sand from inland country of New Guinea. 



Froc. Lit. Phil. Soc. Manch. vol. xv. p. 75. 

 Contains particles of gold, magnetic and non-magnetic iron, Eorami- 

 nifera, silicified fragments of Echini, and shells. 



Stone, 0. C. Description of the Country and Natives of Port Moresby 

 and Neighbourhood, New Guinea. Proc. B. Geogr. Soc. vol. xx. 

 pp. 330-343 ; Jouni. R. Geogr. Soc. vol. xlvi. pp. 34-62. 

 At Anuapata the hills are limestone, with an average height of 400 ft. 

 Mixed with the soil are fragments of decayed coral and white non- 

 auriferous quartz. A seam of plumbago runs along the E. shore of 

 Eairfax Harbour. II. E., Jun. 



Thomson, [Sir] C. Wyville. 1. Preliminary lleport to the Hydro- 

 grapher of the Admiralty on some of the Results of the Cruise of 

 H.M.S. ' Challenger ' between HaAvaii and Valparaiso. Proc. R. 

 Soc. vol. xxiv. pp. 463-470, pis. 15-19. — 2. Report to the Hydro- 

 grapher of the Admiralty on the Voyage of the ' Challenger ' from 

 the Falkland Islands to Monte Video, &c. Ibid. pp. 623-636, 

 pis. 25-33. 



Notes on the soundings. In no. 2 is a brief account of the Hawaiian 

 volcanos. 



Velain, Ch. Les lies Saint Paul et Amsterdam. — L'lle de la Re- 

 union. Observations Geologiques faites pendant le Voyage de la 

 Mission chargee d'aller observer le Passage de Venus sur le Soleil 

 a I'ile Saint Paul, sous le commandement de M. Mouchez, capitaine 

 de vaisseau. [St. Paul, Amsterdam, and Bourbon. Geological 

 Notes taken in the Transit-of- Venus Expedition.] Compt. Rend. 

 Assoc. Frang. for 1875, pp 581-600, pis. iv., v. (views). 



Aden consists of trachyte, phonolite, basalt, volcanic breccia, scoriae, 

 and recent limestone showing elevation. Bourbon of two volcanic 



