METEOROLOGY WATER. 511 



Effect of suow and ice on the temperature of the air, O. V. Johansson 

 (Of vers. Fimka Vetcnsk. Hoc. ForhandL, 55 {1912-13), Afd. A, .A'o. 1, Art. 11, 

 pp. 64)- — This article discusses in some detail the effect of melting suow and 

 ice on the diurnal and annual variations in temperature of the air, and it is 

 shown that there is a marked influence in this respect. 



A quantitative determination of the radium emanation in the atmosphere 

 and its variation with altitude and meteorological conditions, J. R. Wright 

 and O. F. Smith iPIiiliijplnc Jour. ScL, Sect. A, 9 {19 W, No. 1, pp. 51-77, 

 fig. 1). — This is a detailed account of investigations which have been noted 

 from another source (E. S. R., 31. p. 20). 



The rainfall of Rhodesia, E. Goetz {Proc. Rhodesia 8ci. Assoc, 8 {1909), 

 pt. 3, pp. IV-\-129, pi. 1, figs. 32; rev. in Cairo Set. Jour., 8 (1914), No. 90, pp. 

 72, 73). — This is a more detailed account of investigations which have already 

 been noted from a briefer paper (E. S. R., 30, p. 211.) The available reliable data 

 are compiled and discussed with reference to variation and distribution (periodic 

 and seasonal) and with relation to pressure. 



The origin of the rains is also discussed, the conclusion being that "the 

 Indian Ocean winds are the principal rain-bearing winds." A chapter deals 

 with the relation of the rains of Rhodesia to those of German Southwest Africa 

 and Australia and with the Nile floods. The author presents data which he con- 

 siders indisputable evidence that the rainfall has been less abundant in Rhodesia 

 during the last 10 or 12 years than prior to that time. He also presents data 

 to show that abnormal rainfall on one part of the earth's surface is followed 

 by the same phenomenon somewhere el.se. 



It is shown that dry and wot seasons are clearly defined in Rhodesia. The 

 former extends from May to September, the latter from November to March. 



Rainfall, reservoirs, and water supply, A. R. Binnie {New Yoi'k, 1913, pp. 

 XI+157, pis. 2, figs. 5.'// rev. in Geogr. Jour., 43 {1914), No. 3, pp. 332, 333).— 

 The earlier chapters of this book deal with such matters as rainfall, drainage 

 systems, catchment areas, floods, and evaporation, while later chapters take 

 up more technical subjects such as reservoir and aqueduct construction, and 

 water storage and supply to houses, in which water is studied in its mechanical 

 properties. A somewhat elaborate discussion is given on the more practical 

 aspects of rainfall study such as mean annual fall, fluctuations from year to 

 year, and the relation of run-off to amount of rain. Other important informa- 

 tion is given upon the influence of geological factors on springs and rivers 

 and on the quality of water to be used for economic purposes. 



Water resources, W. H. Sherzeb {Mich. Geol. and Biol. Survey PuJ). 12, 

 Geol. Ser. 9 {1913), pp. 222-264, P's- 4, figs. 4)-— The surface and underground 

 water supplies of Wayne County, Mich., are discussed with reference to 

 their occurrence, distribution, and availability for industrial and domestic uses. 



Surface water supply of the North Atlantic coast basins, 1912, C. C. 

 Babb, C. C. Coveet, and J. G. Mathers (17. S. Geol. Survey, Water Supply- 

 Paper 321 {1914), PP- 240, pis. 3). — This report presents results of measure- 

 ments of flow made on the St. John, St. Croix, Machias, Union, Penobscot, 

 Kennebec, Androscoggin. Presumpscot, Saco, Merrimac, Blackstone, Connecti- 

 cut, Housatonic, Hudson, Delaware, Susquehanna, Patuxent. Potomac, and 

 Rappahannock river basins during 1912. 



Surface water supply of the Ohio River basin, 1912, A. H. Horton, W. E. 

 Hall, and H. J. Jackson (U. S. Geol. Survey, Water-Supply Paper 323 {1914), 

 pp. 118, pis. 2). — This paper reports results of measurements of flow made on 

 the Ohio River and its tributaries during 1912. Tables are also included giving 

 gage heights and daily and monthly discharges at each station. 



