414 EXPEEIMENT STATION RECORD. 



on the Eye, by W. E. Burge ; Rotation of Solar Corona, by J. Bosler ; Rotation 

 of Solar Corona, by H. Deslandres; Deflection of Bodies Moving Freely under 

 Gravity on a Rotating Sphere (illus.), by C. F. Marvin; Cause of "Smoke" 

 from Mount Hood (illus.), by F. D. Young; The Making of Forecasts by Lay- 

 men, by C. F. Marvin ; Pennsylvania Weather and Climate in 1G82 ; on Water- 

 fall Electricity and on the Surface Condition of Liquids, by P. Leuard ; Gage 

 Aperture and Weight of Catch, by C. N. Haskins; Atmotpheric-Electric Obser- 

 vations on the Third Cruise of the " Carnegie," 1914, by W. F. G. Swann ; Foggy 

 Days in Manchester, England, by W. C. Jenkins; Phj-sical Conditions of the 

 Accumulation of the Sun's Heat in the Salt Seas, by M. R6zsa; Absorption 

 of Ultra-Violet and Infra-Red Radiations by Arable Soil, by J. F. Tristan and 

 G. Michaud ; Density of Oxygen, by A. F. O. Germann ; Ordinary«and Internal 

 Seiches in Lake Tasawa, by K. Honda ; .^olian Tones and Resistance of Small 

 Plates in a Stream of Fluid, by Lord Rayleigh ; and Selected Bibliography of 

 Frost in the United States, by W. G. Reed and Cora L. Feldkauip. 



Climatological data for the United States by sections (U. S. Dcpt. Agr., 

 Weather Bur. Climat. Data, 2 (1915), Nos. 9, pp. 224, fiffS. 7, pis. 2; 10, pp. 232, 

 pis. 2, figs. 8). — These numbers contain brief summaries and detailed tabular 

 statements of climatological data for each State for September and October, 

 1915, respectively. 



Meteorological observations at the Massachusetts Agrricultural Experi- 

 ment Station, J. E. Cstrander and D. Potter (Massachusetts Sta. Met. Bills. 

 323. 32.'f (19 15), pp. 4 each). — Summaries of observations on pressure, tem- 

 perature, humidity, precipitation, wind, sunshine, cloudiness, and casual phe- 

 nomena during November and December, 1915, are presented. The general 

 character of the weather for November is briefly discussed, and the December 

 bulletin gives a summary for the year. The principal data in this summary are 

 as follows: 



Pressure, reduced to freezing and sea level (inches). — Maximum, 30.58, Feb- 

 ruary 19; minimum, 28.85, December 2G; mean, 29.992. Air temperature, in 

 ground shelter (degrees F.). — ^Maximum. 93, September 9, 15; minimum, — 4, 

 .January 5. Humidity. — Mean dewpolnt, 38.8; mean relative humidity, 75.6. 

 Precipitation. — Total rainfall or melted snow, 51.58; number of days on which 

 0.01 in. or more rain or melted snow fell, 122 ; total snowfall, 40.8 in. 

 Weather. — Total cloudiness recorded by sun thermometer, 2,230 hours, or 50 

 per cent; number of clear days, 82. Bright sunshiiw. — Number of hours re- 

 corded, 2,224, or 50 per cent. Wind. — Prevailing direction, west-northwest ; 

 total movement, 50,48G miles ; maximum daily movement, 555 miles, March 3 ; 

 minimum daily movement, 1 mile, January 4; maximum pressure per square 

 foot, 22 lbs., November 15. west-northwest. Dates of frost. — Last, May 20; 

 fii'St, September 23. Dates of snow. — Last, April 3; first, November 17. 



Atmospheric circulation and radiation, F. H. Bigelow (Xcw York: John 

 Wileu tC- Sous, li)15, pp. Xl-\-Ji31, figs. IS). — This is a meteorological treatise on 

 the circulation and radiation in the atmospheres of the earth and of the sun. 

 It sets forth a new method of discussing meteorological problems, based upon 

 a simple adjustment, devised by the author, "of the thermodynamic adiabatic 

 equations found in all treatises to an exact and practical form of computation 

 which will adapt them to the nonadiabatic system prevailing in the atmos- 

 pheres of the earth and of the sun." The method is explained " with suffi- 

 cient detail to enable the reader to utilize the formulas in practical com- 

 putations." 



The book contains a solution of the following problems " that have heretofore 

 been intractable along the old lines of procedure: " (1) The diurnal convec- 

 tion and the semidiurnal barometric waves, with the radiation; (2) the 



