834 EXPEEIMENT STATION RECOED. 



pp. 720-732, figs. 4)- — This is an account of apparatus used and results obtained in 

 investigations similar to those recently reported by Very ( E. S. R. , 12, ^. 723) . Special 

 attention is given to absorption by carbon dioxid. It was found that in no case did 

 the absorption of terrestrial radiation by carbon dioxid exceed 15 per cent, and the 

 amount of absorption varied very little with fluctuations in the carbon dioxid con- 

 tent, provided this was not less than 20 per cent. The principal result of a decrease 

 of the carbon dioxid content is a somewhat wider diffusion of the radiated heat. 



Climatological atlas of the Russian Empire ( U. S. Dept. Arjr., WeatJier Bureau, 

 MoiitJih/ Wcatlirv licvieu', 28 {1'jOO), Xo. S, p. 343). — "As a memorial volume com- 

 memorating the fiftieth anniversary of the foundation of the Central Physical Obser- 

 vatory founded by the Emperor 2s icholas I on April 1, 1849, the present director- 

 general, M. Rykatcheff, has published a magnificent folio atlas, in which, by means 

 of 89 meteorological charts and 15 graphical tables, he has presented the prominent 

 features of the climate of the Russian Empire from Warsaw, on the extreme west, 

 to Bering Strait, on the east, and from Teheran, on the south, to the Arctic Ocean, 

 on the north." 



British, rainfall for 1899, H. S. Wallis (On the distribution of rain over the British 

 Isles duriiKj the i/car 1S90. London: Edum-d Stanford, 1900, pp. 307, pi. 1, charts 4)- — 

 This, the fortieth volume of Symons's British Rainfall, gives a brief account of the life 

 and work of G. J. Symons, the founder of the British rainfall service, who died March 

 10, 1900, and records data on rainfall collected by 3,500 observers. Besides the usual 

 detailed records of the results of the year's observations, the volume contains a dis- 

 cussion of the average rainfall of the decade 1890-1899, as shown by observations at 

 a hundred stations well distributed over England, Scotland, and Ireland. 



Summary of weather at the North Louisiana Experiment Station during^ 

 1892-1899, J. G. Lee {Louisiana Stas. Bid. 62, 2. ser., pp. 473-477). — A monthly 

 summary ior each year of observations on temperature and precipitation. 



Meteorological summary for 1899 {Maryland Sta. Rpt. 1900, p. IX). — A tabular 

 monthly summary (jf observations at College Park, ]Md., on temperature and precipi- 

 tation. The mean temperature for the year was 54° F. ; the highest, 98°, June 7, the 

 lowest, 4°, February 9. The total i^recipitation for the year was 45.8 in. 



WATER— SOILS. 



Principles of water analysis as applied to New Mexico waters, 



A. Goss {jyein MexU-o Bid. SJi.,2>2>- oo-lOS). — This bulletin reports and 

 discusses the results of analysis (sanitar}- and mineral) of 148 samples 

 of stream, spring, and well waters examined in the laboratory of the 

 station during the past 8 years. Analyses of 1-1 samples from sources 

 outside of New Mexico are given for purposes of comparison. The 

 btdletin includes the results of a continuation during 1899, in coopera- 

 tion with this Office, of a study of the fertilizing value of the matter 

 carried by the Rio Grande water, commenced in 1893 (E. S. R., 5, 

 p. 1002), and of similar studies of the water of the Pecos River and 

 other streams used for irrigation purposes in New Mexico. 



"The total solids in the Pecos water are much higher than in the Rio Grande water, 

 averaging in the 6 regular samples analyzed 314.20 parts as compared with 44.11 for 

 the Rio Grande during 1893-94. ^ The alkali is also correspondingly higher in the 



1 The 3 samples of Rio Grande water analyzed in 1899 were from the small streams 

 which came down the river after periods of complete dryness, and were therefore 

 abnormally charged with alkali. 



