METEOROLOGY — WATER. 



811 



tation, and weather conditions at the different Weather Bureau stations in 

 Alaska. 



Meteorology, H. D. Edmiston {Pennsylvariia Sta. Rpt. 1910, pp. 255-266, 

 607-630). — The observations here recorded are of the same character as those 

 reported in previous years (B. S. R., 23, p. 516). The summary for 1909 is 

 as follows: 



Summary of meteorological observations, 1909. 



Growing 

 season 

 (April- 

 Septem- 

 ber). 



Barometer (inches): Mean 



Temperature (°F.): 



Mean 



Highest (Aug. 8-9) 



Lowest (Jan. 19) 



Greatest daily range (Apr. 10) 



Least daily range (Apr. 2) 



Rainfall (inches) 



Number of days on which 0.01 inch or more rain fell 



Mean percentage of cloudiness 



Number of days on which cloudiness averaged 80 per cent or more 

 Last frost in spring, May 12. 

 First frost in fall, Sept. 6. 



60.8 



92.0 



118.0 



28.38 

 61 

 5.1 

 37 



1 April 11. 



Meteorological notes, H. L. Price (Virginia Sta. Rpts. 1909-10, pp. 22J,-232, 

 figs. 5). — This is a summary of meteorological data secured since the publica- 

 tion of a 10-year summary in 1905 (E. S. R., 17, p. 836), and gives tabular 

 records of temperature, precipitation, prevailing wind, sunshine, and charts 

 showing the maximum, mean, and minimum temperatures by months and 

 monthly precipitation. For the sake of comparison, the temperature and pre- 

 cipitation charts for 1893 to 1904 are reproduced. A general summary for the 

 15-year period is given. 



The mean annual temperature for the 15 years was 51.34° F., the maximum 

 96°, the minimum — 13°. During the period the temperature fell below zero 

 on January 10, 11, 15, and 16, 1893; December 29, 1894; January 12 and 13 

 and February 3, 6, 7, 8, 9, and 15, 1895 ; February 20 and 21, 1896 ; January 28 

 and 30, 1897; February 3 and 4, 1898; February 1, 9, 10, 11, 13, and 14, and 

 December 31, 1899 ; February 1, and March 17 and 18, 1900 ; December 16 and 

 21, 1901; February 19, 1903; January 30 and February 6, 1904; February 14, 

 1905; February 7, 1907; February 2, 1908; November 16, 1908; and January 

 31, 1909. The temperature rose above 95° on August 10 and 11, September 3 

 and 10, 1900; and July 17, 1902. The mean annual precipitation for the period 

 was 40.86 in. The highest monthly precipitation, 12.29 in., was in July, 1905, 

 the lowest, 0.13 in., in October, 1904. The greatest depth of snow in 24 hours, 

 11 in., occurred January 9, 1895. The average date of last killing frost in 

 spring was April 26, of first killing frost in fall October 2. The latest killing 

 frost recorded was May 22, 1907, the earliest, September 22, 1897. 



Meteorological, magnetic, and seismic observations of the College of 

 Belen of the Society of Jesus, Habana. 1910, L. Gangoiti (Observatorio Me- 

 teorologico, Magnctico y Seismico del Colegio de Belen de la Compamia de 

 Jesus en la Habana, afio de 1910. Habana, 1911, pp. 95, dgms. 3). — Detailed 

 reports, largely tabular and diagrammatic, of the usual observations. 



Sixth annual report of the meteorological comm^ittee (Ann. Rpt. Met. Com. 

 [Gt. Brit.], 6 (1911), pp. 164, pls. 9, figs. 3).— This consists as usual of adminis- 



