276 Reviews — Geological Society of Glasgow. 



finding water, yet to get the best results proper study of the strati- 

 graphical geology of the district is essential. Mineral and hot springs 

 and the causes of the mineralization and the elevation of temperature 

 are considered at the close of the book. Altogether the work is one 

 that we may confidently recommend to all interested in hydro-geology. 

 The absence of an index, however, is to be deplored. 



XII. — Glasgow Geological Society. 



THE Transactions of this Society for 1911-12 (vol. xiv, pt. iii, 

 1913) contain a paper by Professor J. W. Gregory on "ThePolmont 

 Kame and on the Classification of Scottish Kames". The Polmont 

 kame extends for a length of about 4J miles, from Callendar Park, 

 near Falkirk, to the south of Bo'ness High Junction Station. It 

 is composed of water-worn gravel, has a general width of 10 to 

 40 yards at the base, rises from the adjacent ground from 10 to 

 50 feet, and slopes at angles of from 15° to 25°. It rests on the 

 main Boulder-clay of the district, and was probably formed at the 

 same time as the Boulder-clay of the drumlins to the north. The 

 author regards the Polmont ridge as a marginal deposit, formed by 

 the wash of water down an ice-slope, and not fluvio-glacial as in 

 the case of eskers and certain of the Scottish kames; and he 

 describes the Polmont kame as ' glacieluvial ', a term suggested 

 by Trofessor Phillimore. 



Mr. G. W. Tyrrell gives an account of " The Petrology of the 

 Kilpatrick Hills, Dumbartonshire; with notes on the Scottish 

 Carboniferous Basalts ". He also describes some " Variolites from 

 Upper Loch Fyne and Skye ", Mr. W. B. Smellie deals with " The 

 Sandstones of the Upper Bed Barren Measures to the east of 

 Glasgow ", strata which overlie the Productive Coal-measures ; he 

 describes the mineral constituents of the rocks and the conditions 

 under which they were deposited, and gives a good view of spherulitic 

 jointing in sandstone. 



Among other papers is one " On the Distribution of Posido7icmya 

 corrugata. Ether., jun., in the Carboniferous Limestone of the Glasgow 

 District", by Mr. Peter Macnair and Mr. H, B. J. Conacher. 



XIII. — Brief Xotices. 



1. The Journal of the Washington Academy of Sciences, 

 January 19, 1913, gives the result of Dr. H. E. Mer win's 

 investigations in searching for liquids of high refraction which would 

 be suitable for the determination of minute grains under the 

 microscope by the Becke or similar method. Mixtures of methylene 

 iodide with tin and arsenic iodides and sulphur give liquids ranging 

 from 1'764 to 1"868, and by dissolving arsenic sulphide in methylene 

 iodide 2'28 may be reached. He also describes reliable melts which 

 may be used in tlie same way : arsenic and antimony iodides dissolved 

 in piperine, l"68-2-10; sulphur with arsenic sulphide, 2-1 -2"6; 

 piperine with rosin, 1-546-1 -682 ; rosin with camphor, 1-5 10-1 '546. 



