METEOROLOGY — WATER, 615 



increases to 190 or even 200 days. In the most western and elevated i)ortion 

 of Maryland the period is but little more than 100 days. 



See also a previous note (E. S. R., 30, p. 814). 



Monthly Weather Beview (Mo. Weather Rev., 42 (1914), Nos. 3, pp. 137- 

 194, Pi^- 9, figs. 11; 4, pp. 195-256, pis. 8, figs. 10). — In addition to notes on 

 weather forecasts for March and April, 1914, river and flood observations, lists 

 of additions to the Weather Bureau library and of recent papers on meteorology, 

 notes from the Weather Bureau library, the weather of each mouth, a con- 

 densed climatological summary, and climatological tables and charts, these 

 numbers contain the following articles : 



No. 3. — The Eruption of Sakurashima, January, 1914 ; Solar Radiation Inten- 

 sities at Mount Weather, Va. (illus.), by H. H. Kimball; Standard Units in 

 Aerology, by T. W. Richards, A. E. Kennelly et al. ; The C. G. S. System and 

 Meteorology, by Y. Bjerknes; Progress in Meteorological Optics during 1912, by 

 C. Jensen; Period of Safe Plant Growth in Maryland and Delaware (illus.), by 

 O. L. Fassig (see p. 614) ; The Progress and Present State of Research on 

 the Evaporation of Moisture in the Atmosphere, by A. Weilemann ; Report of 

 the Meteorological Station at Berkeley, Cal., for the Year Ending June 30. 1913, 

 by W. G. Reed ; Electric Paragreles, by A. Angot ; A New Turbidimeter, by 

 P. Y. Wells; The Lowest Temperature Obtainable with Salt and Ice, by R. A. 

 Gortner; The Motion of the Solar Atmosphere; Lightning at Mount Wilson 

 Observatory, by W. P. Hoge; Continuous Pictures of the Weather; Proposed 

 Daily Weather Map for the Southern Hemisphere: Seismic Disturbances in the 

 Philippines, by M. S. Maso and W. D. Smith ; and Possibility of Recurrence of 

 the Floods of March, 1913, by J. W. Smith. 



No. 4. — Principia Atmos])herica : A Study of the Circulation of the Atmos- 

 phere (illus.), by W. N. Shaw; Birkeland's Theory of the Zodiacal Light; A 

 Possible Connection Between Magnetic and Meteorologic Phenomena, by K. 

 Birkeland ; Radiotransmission and Weather, by A. H. Taylor ; Maurer and 

 Dorno on the Progress and Geographical Distribution of the Atmospheric- 

 Optical Disturbance of 1912-13 ; Meteorological Observations in Connection 

 with Botanical Geography. Agriculture, and Forestry (illus.) by R. Zon (see 

 p. 614) ; Tasks and Problems for Meteorological Explorations in the Antarctic 

 (illus.), by W. Meinardus; Conversion of Barometric Readings into Standard 

 Units of Pressure, by R. N. Covert; The Beaufort Wind Scale; Ice Patrol Over 

 the North Atlantic Ocean, by E. H. Bowie; A Lake Huron Current, by J. D. 

 Persons; and Proposed Asiatic Extension of the Russian Weather Service, by 

 ,T. F. Jewell. 



Climatological data for the United States by sections {U. S. Dept. Agr., 

 Weather Bur. Climat. Data, 1 {1914), Nos. 5, pp. 226, pis, 3, figs. 7; 6, pp. 228, 

 pis. 2, figs. 7). — These numbers contain, respectively, brief summaries and 

 detailed tabular statements of climatological data for each State for May and 

 June. 1914. 



Meteorological records, E. F. Ladd (North Dakota Sta. Rpt. 1913, pp. 13- 

 20). — Records are given of daily observations at the station on temperature, 

 precipitation, sunshine, and wind during 1913, and monthly summaries for 1910 

 to 1913. inclusive. 



Ohio weather for 1912, J. W. Smith and C. A. Patton (Ohio Sta. Bui. 259 

 (1913), pp. 299-403, figs. 86). — ^The temperature and precipitation throughout 

 the State during each month is shown in charts. The usual summary tables are 

 given showing temperature and rainfall at Wooster and throughout the State 

 (1S8S to 1912). 



The mean temperature for the year at Wooster was 47.8° F., for the State 

 49.6° F. The highest temperature at the station was 93°, September 10; for 

 the State 101°, July 15. The lowest temperature at the station was —24°, Jan- 



