836 EXPERIMENT STATION RECORD. 



Meteorological data, II. L. Price < Virginia Sta. Bui. 155, pp. 119-129, charts 

 5 i. A previous bulletin of the station (E. S. It., 11, p. 128). gave summaries of 

 observations on temperature, precipitation, wind, cloudiness, etc., for the period 

 1893-1898, and charts showing variation in temperature and rainfall for the 

 same period. This bulletin brings these observations and charts down to the 

 end of 1904. The following summary for the period 1893-1904 is given: 



"Temperature. — Mean annual. 51.5°; mean maximum. 63.22° ;- mean mini- 

 mum, 40.04°; absolute maximum, 96°; absolute minimum, —13°. Dates when 

 temperature fell to or below zero: January 10, 11, 15 and 10, IS!).",; December 

 20. 1894; January 12 and 13 and February 3, 0. 7. 8, 9 and 15, 1895; February 

 2u .mii.I 21, L896; January 28 and 30, 1897; February 2. and 4, 1898; February 

 1. ii, pi. il. 13 and 14. and December 31, 1899; February 1. and March 17 and 

 18, 1900; December 16 and 21, 1901; February 11). 1903; January .",(> and Feb- 

 ruary d. 1904. Dates when maximum temperature rose to or above 95° : Aug- 

 ust 1<» and 11 and September :; and 1(>. 1900; July 17, 1902. 



"Precipitation. — Mean annual, 2>9.41 inches: spring, 10.22; summer. 12.r>7; 

 fall. 7..~»<>: winter. 0.12. Highest for month. August, 1901, 10.53; lowest for 

 month. October. 1904, 0.13. Greatest depth of snow in 24 hours: 11 inches, 

 January 0. 1895. 



"Frost. — Average date of last killing frost in spring. April 2. ~> : average date of 

 first killing frost in fall, September 30; date of latest killing frost recorded. 

 May 13, 1895; date of earliest killing frost recorded. September 22, 1897." 



Observations on the intensity and duration of rainfall, A. YVoeikof (Met. 

 Zlsrhr., 23 (1906), No. 1. pp. 8-10). — Four rainfall types are briefly described. 



Rainfall per day and hour in Northwest England, A. Woeikof (Met. 

 Ztschr., 2-/ (1906), No. 1. pp. 6-8). 



Distribution of summer rains in Germany, F. Fess (Met. Ztschr., 22 (1905), 

 Nos. 11. pp. $6-505, figs. ) : 12, pp. 529-5^1, fi'J- 1)- — Rainfall movements are 

 traced and the conditions (temperature, pressure, etc.) affecting them are dis- 

 cussed. 



Estimation of the possible period of sunshine and its normal value for 

 Germany, Grossman?* (Met. Ztschr., 22 (1905), No. Jo. pp. [33-^38). 



The relation of the temperature of the lowest layers of the air to that 

 of the upper layers containing solid and liquid matter, A. Woeikof (Met. 

 Ztschr., 23 i 1906), No. 1. pp. 1-6), 



Daily temperature periods in the lowest layer of the air, M. Sassenfeld 

 (Met. Ztschr., 23 (1906), No. J. pp. 24-30). — The periods are worked out for 

 normal, clear, and cloudy days on the basis of observations at Potsdam. 



On the importance of drainage for the elimination of danger from frost, 

 L. Lindelof et al. (Svenska MossJculturfor. Tidskr., If) (1905), No. 5-6, pp. 

 495-513). — A discussion of the subject by a committee of scientists appointed 

 by the Finnish State Board of Agriculture. — f. w. woel. 



International catalogue of scientific literature. F — Meteorology (Inter- 

 nal. Cat. Sci. Lit.. 3 (1905), Oct.. pp. VITI+235).— This is the third annual 

 issue of this catalogue. The literature indexed is mainly that of 1903 and of 

 the earlier part of 1904. 



Lightning report, J. P>. Reyxoeds (Ann. Rpt. Ontario Apr. Col. and Expt. 

 Farm. 3,1 (1905), pp. 30-32). — A statement is given of destruction and damage 

 by lightning in Ontario during 1905 as compared with previous years. The 

 data are tabulated with reference to trees, animals, and buildings struck. 



Geology and water resources of Oklahoma, C. N. Gould (V. S. Gcol. Sur- 

 vey, Water-Supply and Irrig. Paper Ao. l' f S, pp. US, pis. 22. figs. 31). — This 



