METEOROLOGY WATER. 513 



107, rev. ed., pp. XXI +27 2, figs, i^).— This is a revision of Bulletin 107 of the 

 Bureau of Chemistry, previously noted (E. S. R., 19, p. 506), embodying further 

 changes suggested by the association and adopted at the 1907 meeting. 



Proceedings of the twenty-fourth annual convention of the Association of 

 Official Agricultural Chemists, held at the Jamestown Exposition, Norfolk, 

 Va., October 9-11, 1907, edited by H. W. Wiley {U. S. Dept. Agr., Bur. 

 Chcm. Bill. 116, pp. 1)3). — This is the official report of the proceedings of the 

 convention. A summarized account of the meeting has been given (E. S. R., 

 19, p. 294), and a circular of the Bureau containing extracts from the proceed- 

 ings noted (E. S. R., 19, p. 1010). 



METEOROLOGY— WATER. 



The relations between the meteorological elements of the TJnited States 

 and the solar radiation, F. H. Bigelow {Amer. Jour. ScL, 4- ser., 25 (1908), Xo. 

 l-',9, pp. .>,1S-.',S0, (Igms. J,; ahs. in Hci. Ahs., Sect. A—Phijs., 11 {1908), Xo. 10, p. 

 552). — It is explained that temperatures in the United States are more largely 

 the product of heat transported in the general circulation than of direct solar 

 radiation, and in order to separate circulation from solar radiation the author 

 analyzes data obtained by the Weather Bureau at 50 stations since 1873 on tem- 

 perature, vapor pressure, aud barometric pressure reduced to strictly homo- 

 geneous series. He also takes into account " the annual numbers of the solar 

 prominences and the annual amplitudes of the European magnetic field," and 

 studies their synchronism with temperature aud vapor and barometric pres- 

 sures of the I'nited States in 11-year and 3-year periods. 



" The synchronism is better defined in the Pacific States than east of the 

 Rocky Mountains, especially in the short period. The amplitudes of the three 

 elements (curves of temperature, barometer, vapor pressure) increase from 

 south to north. In the long-period curves an increase in the prominence and 

 magnetic-force numbers is always accompanied by a decrease in temperature 

 and vapor pressure, but by an increase in the barometric pressure ; in the short 

 period the same rule holds for the east, but the reverse for the Pacific States, 

 whose temperatures generally are the reverse of the central and eastern dis- 

 tricts in the sense that the monthly residuals have opposite signs. This is ex- 

 plained by the circulation. The Pacific States may practically be considered as 

 part of the tropical system, characterized by a quiescent state of the atmosphere 

 and freedom from cyclonic circulation ; part of the Rocky Mountains cyclones 

 and high-pressure areas advance down the slope eastward." 



The extension of this system of observation is urged since in the author's 

 opinion " this sub.iect will in the future assume large proportions, because it is 

 the only way at all pi'omising in which to lay the foundations for a system of 

 seasonal forecasting. The Weather Bureau has now adjusted its records to the 

 required standard of observation and computation for about 100 stations, and 

 the future records will continue automatically to unroll the hidden story of the 

 sun's influence upon the earth's weather and climatic conditions." 



The moon and the weather, Jochimsen {Fiihling's Landw. Ztg., 57 (1908), 

 No. IJf, pp. 502-510). — Data and arguments are presented to show that the moon 

 does not control the weather to an appreciable extent. 



Further notes on the difference of temperature between Mount Royal 

 and the McGill College Observatory. — Local temperature forecasting, C. H. 

 McLeod and H. T. Barnes (Proc. and Trans. Roy. Soc. Canada, 3. scr., 1 (1907), 

 >S're. ///, pp. 3-7, dgms. 2). — This is a third communication on the subject (E. S. 

 R., 17. p. 224; IS. p. 813). and summarizes further records which confirm the 

 conclusion that the differences in temperature at the mountain top and at the 

 observatory, though small, are of value for local temperature forecasting. Ob- 



