WATER SOILS. 855 



point, atmospheric pressure, precipitation, evaporation, ;ui<l direction ami velocity 

 of the wind during the year 1903. 



Weather conditions at Manor Farm, Garforth, E. P. Kaye | Univ. /,.<</.< ,n,<l 

 Yorkshin Council Agr. Education, [Pamphlet] /'•"<. 1904, pp. 10-13, charts 2). \ sum- 

 mary <>i' tin- weather conditions during each month of the year ended September 30, 

 1904. 



Meteorological and river observations, ( Kidturtechniker, ," 1904), No. ',. pp. 

 316-332). — A summary of observations al a number of different places in Schleswig 

 during June to August, 1904, ami measurements of the height of the Oder ami Neisse 

 during the months of .Ian nary to June, 1904. 



Report of the work of the station of agricultural climatology at Juvisy 

 during 1903, ( '. Flammarion I /.'«/. Mens. Off. Renseignements Agr., 3 I 1904), No. //, 

 pp. 1326-1339, figs. 7).— This report contains a tabular and diagrammatic record of 

 the temperature of the air during each day ami month of 1903 and of the average 

 annual ami seasonal temperatures from 1885 to 1903; observations on barometric pres- 

 sure, humidity, cloudiness, rainfall, direction of the wind, hours of sunshine, and 

 solar radiation; a comparison of the monthly temperatures of the air with those of 

 the water in two wells; and notes on the shedding and renewing of leaves. The 

 meteorological conditions during 1903 were as a rule normal. 



Radiation and terrestrial temperature, < '. <J. Abbot [Science, n. ser., 20 I 1904), 

 A'". 519, pp. 802, 80S). This paper, which was read before the Philosophical Society 

 of Washington, discusses " the substantia] equilibrium of temperature of the earth, 

 and consequent equality of solar radiation absorbed in and about the earth to that 

 emitted from and about the earth to space." 



The diurnal and annual periods of temperature, humidity, and wind velocity 

 up to four kilometers in the free air, and the average vertical gradients of 

 these elements at Blue Hill, II. II. Clayton [Ann. Aslron. Obs. Harvard College, 

 58 {1904), pt. 1: abs. in Science, n. ser., .' i {1905), No. 533, />/>. 433-435). This is a 

 summary of results of observations by means of kite.- at the Blue Hill Observatory, 

 with the principal conclusions drawn from this work. 



The absorption of light by the atmosphere, A. Bemporod {Zur Theory der 

 Extinktion det Lichtes in der Erdatmosphdre. Mill. Grossh. SternivarU ;" Heidelberg, 

 pp. 78; rev. in Nature [London], :i {1905), No. 1843, />/>. f02, $03). 



WATER SOILS. 



The purification of drinking water by electrical methods, I.. < Ierard | Jimr. 

 Soc. Cent. Agr. Belg., 52 \ 1905 \, No. 3, pp. 87-97 I. -The various methods of purifica- 

 tion of drinking water by means of ozone produced by electrical means are described 

 and their efficiency discussed. 



Water resources of the Philadelphia district, Florence Bascom i U. S. Geol. 

 Survey, Water-Supply and Trrig. Paper No. 106, pp. 75, pis. 4, figs. 3). — "The paper 

 presents a summary of the knowledge of the water resources of Philadelphia and 

 vicinity, including both surface and underground waters. In the discussion of the 

 former a considerable number of data which have appeared in scattered and inacces- 

 sible publications are brought together and presented with the new material. The 

 facts relating to underground waters are largely new and are the result of a personal 

 canvass of the region." 



Quality of water in the Susquehanna River drainage basin, M. (). Leigh- 

 ton ( U. S. Geol. Survey, Water-Supply and Trrig. Paper A'". 108, pp. 76, pis. 4, figs. 7). — 

 "In this paper is presented a brief introductory chapter on the physiographic 

 features of the Susquehanna basin, by G. B. Hollister, which is followed by a 

 detailed discussion of the population and industries in New York. Numerous analyt- 

 ical report- are presented which dmw the character of the unpolluted waters: in the 



