METEOROLOGY WATER. 4 15 



METEOROLOGY— WATER. 



[Meteorological observations at North Dakota Station], E. F. Ladd (North 

 Dakota tSta. Rpt. /.90,S, pf. ], pp. 18-29). — Observations on temperatnre, rain- 

 fall, sunsliine, wind uiovenieut, and evaporation are suinniarized as in former 

 reports. The mean temperatnre for 1008 was 42.20° F. The niaximnni tempera- 

 ture was 97°, July 10, the minimum, —29°, Jan. 29. The rainfall was 18.98 in. 

 as compared with an average rainfall for 15 years preceding 1907 of 21.36 in. 

 The total amonut of water evaporated from the water surface for the 5 months 

 May to Sei)tember was 37.24 in., or 2.76 times the rainfall for the same period. 



Meteorological data, H. L. Trice and A. W. Drinkard, Jr. (Virginia Sta. 

 Rpt. I DOS, p. J 50). — Ob.servations on temperatnre. precipitation, prevailing 

 winds, and clondiness from January 1, 1907, to December 31, 1908, are sum- 

 marized in tables. 



Climate and meteorology of Australia (Off. Yearbook A list., 2 (1901-1908), 

 pp. 123-153, ilgiHS. 3, map 1). — The history of meterological observations in 

 different parts of Australia is briefly reviewed, the present organization of the 

 meteorological service is described, and the available data relating to tempera- 

 ture, pressure, precipitation, winds, storms, etc., are summarized. Tlie prin- 

 cipal influences affecting Australian climate are also briefly discussed. 



Is our climate changing? J. W. Mooric (Rpt. Brit. As-.s-oc. Adv. ScL, 1908, pp. 

 623-625). — Reviewing the available data on the subject, the author concludes 

 "that, within the past six centuries at all events, no appreciable change has 

 taken place in the climate of the British Isles. There is not a scintilla of 

 evidence to show that any such change has taken place in the past or is likely 

 to take place in the future." 



The compensation between types of seasons in certain regions of the earth, 

 H. H. HiLDKKRANDSsoN (Compt. Retid. Acad. Sci. [Pari.^i], l'i8 (1909), No. 23, 

 pp. 1559-1562, dgm. 1; ahs. in Rev. Sci. [Paris], J,l (1909), I, No. 25, p. 7.05).— 

 It is stateil that cold seasons in the region of Iceland and the north of Europe 

 are accompanied by warm seasons over Central Europe and vice versa. Other 

 illustrations of such opposition in temperature are cited. 



The isothermal layer of the atmosphere, W. N. Shaw, 0. J. P. Cave, and 

 A. L. RoTCH (Rpt. Brit. Assoc. Adv. Sci., 1908, pp. 591-59 Ji). — Summaries of 

 thi-ee papers on this subject are given. 



Climatic temperature tables and heat requirement figures, O. Krell, Sr. 

 {Gsndhts. Ingcn., Fcstnummcr, 1909, .Tunc 10, pp. 27-35, figs. 10). — Tables and 

 diagrams prepared from long-period observations at a number of places in 

 Europe are given. 



Climatic requirements of the maize crop, J. Bttrtt-Davy (Transvaal Agr. 

 Jour., 7 (1909), No. 21, pp. //3/-//37).— Altitude, temperature, and rainfall with 

 reference to the growth of corn in the Transvaal are discussed. 



" Tempei-ature appears tt> have no direct effect upon the yield of maize per 

 acre, but it does influence the maturing of the grain, and often in this way 

 affects the yield of marketable grain, es]iecially at our higher altitudes." 

 Itainfall, however, lias a very direct bearing u]ion yield. The data collected 

 show that the sunnner rainfall couditions tlu'oughout the greater jtart of South 

 Africa are eminently suited to maize i)roduclion. 



Report on the gaging of streams for 1907, II. E. IIorton (Ann. Rpt. State 

 Engin. and Surveyor N. Y., 1907, pp. 359-599). — This report "contains the re- 

 sults of observations of water levels along the lines of the Barge Canal as well 

 as at gaging stations maintained in coop(>ration with the TTuited States Geologi- 



