Brief Notices. 277 



drift " (Boulder-clay) ; a new topography was developed when the 

 " Aftonian Interglacial deposits" were accumulated; and the main 

 features then produced are those of the present day. Minor features 

 were affected by a partial mantling of Ivansan drift, by later erosion, 

 and also by local deposition of loess. 



2. California. — A well-illustrated report on " The Geomorphogeny 

 of the Sierra Nevada north-east of Lake Tahoe " has been prepared by 

 Mr. John A. Eeid (Univ. California Public, vol. vi, p. 89, 1911). 



3. Geology of the Argentine Republic. — A memoir entitled 

 "La Precordillera de San Juan y Mendoza", by Dr. Richard 

 Stappenbeck, is descriptive of the fourth section of the Geological Map, 

 which embraces a belt of country extending from San Juan northwards 

 to Jachal and southwards to Mendoza, along the western borders of 

 the Republic. The formations represented on the map (scale 1:500,000) 

 include Pre-Cambrian (?), Lower Silurian (or Ordovician), Devonian, 

 Carboniferous, Permian, Trias, Rhsetic, Jura-Cretaceous, various 

 Pleistocene and recent deposits, and Igneous rocks. In the memoir 

 the various rocks are described, together with the structure of the 

 country ; lists of fossils are given, and the mineral products and 

 underground waters receive clue attention. The memoir contains 

 a number of illustrations of the geological features, and is published 

 as volume iv, No. 3 of the Anales de Ministerio de Agricultura 

 (Seccion Geologia, Mineralogia y Mineria), Buenos Aires, 1910. 



4. South Australia. — Mr. Walter Howchin has described a "New 

 and Extensive Area of Permo-Carboniferous Glacial Deposits" in the 

 country between Strathalbyn and Port Elliot, south of Adelaide 

 (Trans. Boy. Soc. S. Australia, vol. xxxiv, p. 231, 1910). The 

 subject is well illustrated by a geological map and fourteen plates. 



5. Measurements of the Increase of Temperature in Bore-holes 

 (Trans. Inst. Mining Engineers, vol. xxxix, 1910). — In this paper 

 Messrs. J. Konigsberger & M. Muhlberg express the view that 

 "Various causes exist (together or separately) for an abnormally 

 elevated temperature in the deeper-lying portions of the earth's crust : 

 the increase of plutonic influences (comparatively recent intrusive 

 bodies) ; ores in process of oxidation ; minerals, such as anhydrite, in 

 course of hydration ; sulphur deposits ; bituminous minerals, especially 

 petroleum ; coals not yet transformed into anthracite ; thermal springs " ; 

 etc. The authors suggest that an abnormally elevated temperature 

 may be "an indication of the said more or less valuable materials", 

 and that for depths of 600 feet or more, " Temperature-measurements 

 should form part of the routine of boring, whether they prove of 

 immediate practical value or not." 



6. Sussex. — In an account of "The Older Prehistoric Paces of 

 Sussex" (Eastbourne Nat. Hist. Soc, 1910) Mr. W. J. Lewis Abbott 

 draws attention to the plateau or eolithic implements, "relics of Pliocene 

 man," found in the county ; and to a particular discovery of Palaeolithic 

 implements north-east of Hastings, many examples being identical 

 with forms found in the French caves of Magdalenian age, and termed 

 by him " Fair high tian ". Mr. Abbott expresses his conviction that 

 the implements of Cissbury (long classed as Neolithic) are of 

 Palaeolithic age. 



