WATER S()IL^^. 725 



tabulated vecord of observations at King-ston on temperatui'e, precipi- 

 tation, cloudiness, and prevailing' winds during each of the first six 

 months of 1899, with a summary for the period from January 1, 1890, 

 to June 30, 1899, inclusive. The summary for 6 months of 1899 (.Tan- 

 uarylto June30, inclusive) is as follows: 



Temperature (degrees F. ). — Maximum, 95, June 6; minimum, — 10, February 10; 

 highest monthly mean, 67.4, June; lowest monthly mean, 23.5, February; highest 

 daily mean, 80, June 6; lowest daily mean, —1.5, February 10; range for six months 

 105. Prccip'datiou (inches). — Total (rain and melted snow), 26.79; greatest monthly, 

 9.67, March; least monthly, 1.87, June; greatest in 24 consecutive hours, 2.76, 

 March 19; snow fall — total, 34.25; greatest monthly, 24.5, February; least monthly, 

 0.5, April. TIt'((//'^'r. — Number of clear days, 77; number of fair days, 44; number 

 of cloudy days, 60; numV)er of days on which there was precipitation of 0.01 in. or 

 more, 59. Prcrailhuj wind, southwest. 



The rainfall in Mav was the smallest recorded at Kingston during 

 the 11 years that records have been kept. 



On the study of distant storms by means of the electroradiophone, T. 



ToMMAsiXA [Vdinpt. J!ni<L Acad Sri. Paris, l.U (1!)00), No. J.i, pp. S7i;-S7S). 



Seasonal variations in temperature at various altitudes in the free atmos- 

 phere, L. Teisserexc 1)E Bokt {(hmpt. Bend. Acad. Sci. Parh, ISl {1900), No. ,22, 

 pp. 920-922, fig. 1). — The results of observations cm temperature in different seasons 

 of the year by means of balloons are charted and discussed. These show that there 

 is a very marked seasonal variation in temperature up to an altitude of 10,000 meters, 

 the variation diminishing as the height increases. 



On the gaseous projectiles of cannon proposed for the prevention of the 

 formation of hail, G. G.vstine and V. Vermorel {Compt. Rend. Acad. Set. Paris, 1.11 

 {1900), Xo. 19, p)>. 766-768). — Various forms are discussed, those producing annular 

 motions of the air Avhen discharged being considered most effective. 



Temperature at the experimental farm at Wollonbar, Ne-wr South Wales 

 {Rpt. Under Sect. Mines and Agr., New Sovtii. Wales, 1899, pp. S9, 40). — A tabular 

 statement of maximum and minimum temperatures, rainfall, and numl)er of cloudy 

 and dry days during each month of 1899. 



Meteorological observations at Hawkesbury Agricultural College, Rich- 

 mond, New South "Wales (Rpt. Under Sect. Mines and Agr., New South Wcdes, 1899, 

 J). 15). — A tal)ular record is given of the rainfall and highest, lowest, and mean tem- 

 peratures during each month of the years 1893 to 1899; evaporation for each month 

 of 1898 an<l 1899; and velocity of the wind during parts of 1898 and 1899. 



Actinometric measurements in the Pamirs, B. W. Stankewitcii ( Compt. Rend. 

 Acad. Sei. Pari.% 131 {1900), No. 22, pp. 879, 880). 



WATER SOILS. 



Third report of work in the study of the fertility of soils, 

 S. BoGDANOv {Seld: Khoz. ! Lycsor., 19S {WOO), July, pp. 59-112; 

 Aiuj., p>p. 2Jf,l-'288). — This is a continuation of previous work (E. S. R., 

 11, p. 130). The author elaborated some years ago a method of deter- 

 mining the fertility of a soil on the basis of a simpliiied chemical 

 anal^'sis. The method has been put to repeated tests in the course of 

 several years and proved relial)le in every instance. The chief features 



