METEOROLO(3Y WATER. 815 



liy tlio winds that rosulnrly 'nlow from tlic west, niid that theso winds are them- 

 selves tlie result of regularly recurring low i)ressures in the region of Iceland. 

 It is also explained that the more rapid this movement the stronger is the 

 current of the cold stream which comes down along the n(»rtheast coast of 

 North America. 



The general conditions and their resultant effects are thus suunuarized : "A. 

 (1) Feel)l(> Atlantic circulation, from August to Fehruary, corresponds with 

 {2) a low water temperature along the west coast of Europe from Xovenilier 

 to April, and with (.3) a low atmosplieric temi)erature in central Europe from 

 February to Ai)ril. (4) One result of this is had hai'vests of grain in north- 

 western Euroiic. At the same time tlier(> is (.">) a great diminution of ice 

 alxmt Xewfoiuidiand during the spring and (C ) an increased amount of ice in 

 the region of Iceland. V>. (1) Strong Atlantic circulation from August to 

 Fei)ruary iii-oduccs cJ » a high water temperature- along the coast of Europ(» 

 from November to April and (.'{) high atmospheric tem])erature in central 

 Europe from February to April. One result of this again is that (4) the 

 weather is favorable for the raising of grain and that good harvests may con- 

 sequently be exi)ected. At the same time with this condition (5) there is much 

 drift ice during the spring in the neighborhood of Newfoundland and (6) much 

 less ice during the same season in the region of Iceland." 



Salton Sea and the rainfall of the Southwest, A. J. Henry {Mo. Weather 

 Rev., SJf {1906), No. 12. pp. .5.)7-J J.9 ) . — An attempt is made in this article to 

 show that there is no relation between the heavy rainfall of the last two 

 years in Arizona and the Kocky Mountain States and the formation of the 

 Salton Sea. 



"The amount of vapor taken into the air over Salton Sea must be consider- 

 able in the coiu'se of a year, but to adduce definite and satisfactory proof that 

 it has increased the rainfall is a very difficult problem. That it hiis increased 

 the relative humidity in a slight measure, is undoubtedly true. Aqueous vapor 

 in the absence of a strong wind circulati(jn is diffused very slowly throughout 

 the atmosphere. It is, therefore, improbable that any considerable portion of 

 the local supply of vapor ever passes beyond the immediate confines of the 

 desert." 



Rainfall fin Bombay 1, V. J. Mead {Season and Crop Rpt. BoiiiJjaii, lf)05-H. 

 I>p. l-'h /-.VA//).— Detailed data of rainfall during 1905 in the different dis- 

 tricts of Bomba.y are reported and the general character of the season is 

 discussed. 



Composition of Barbados rainfall {Rpt. Af/r. Work, I tup. Dcpf. A (jr. West 

 Indies, l'.)0.i-l!>0.'), i)ts. 1-2, p. 3). — The amount and composition of the monthly 

 rainfall from December, 1908, to May, 1905. are tabulated. The total amount 

 of rain falling in that period was 82.57 in., sui)plying approximately 2.".9 lbs. 

 of clilorin and (i.T lbs. of nitrogen per acre. 



Amount of chlorin in rain water, W. P. Jorissen {Uliem. Weelibl.. .? (IDOG), 

 pp. (!-'i7-(J'i!): abs. in Chem. ('entJ>l., 1!)06, II, Xo. 20, p. 1579; Jour. Clieiii. <S'oc. 

 [London], 92 {1907), No. 531. II. p. .',8).— The average chlorin content of 154 

 samples of rain water was .".2.5 mg. i)er liter. 



Amount and composition of drainage waters, rain, dew, and canal water 

 collected during the years 1903-4, 1904-5, 1905-6, J. M. IIayman {Rpt. 

 Cainipdrc \India\ Ai/r. Sla.. lHnii. pp. 2.^-2'>). — Data are given for the amount 

 and composition of water from rain and drain gages similar to those at Roth- 

 amsted. as well as for dew collected on a surface of y^Vcr '><^^'6 and of irriga- 

 tion water used at the station during 18 months. 



The rainfall during the year ended May .81, 1905, was 49.2 in., containing 0.5 

 part per million or 2.44 lbs. per a< re of nitrogen as ammonia and 0.8 part or 



