750 



EXPERIMENT STATION RECORD. 



METEOROLOGY- CLIMATOLOGY. 



Meteorological observations at the Michigan Agricultural College for 

 1903 (Michigan Sta. Rpl. 1904, pp. 182-155).— Tabulated daily and monthly sum- 

 maries of observations during 1903 on temperature, pressure, precipitation, humidity, 

 cloudiness, wind movement, etc. 



Meteorology, ('. \V. Norms and T. M. Carpenter (Pennsylvania Sta. Rpl. 1903, 

 pp. 45-59, 221-245). — The observations here recorded an- of the same character as 

 those reported in previous years ( E. S. R., 15, p. 124). Monthly summaries of 

 observations are given in the body of the report and the detailed record in an 

 appendix. The summary for 1902 is as follows: 



Summary of meteorological observations, 1902. 



1902. 



Growing season 

 (Apr.-Sept.). 



Barometer (inches i: 



M ean 



II ighest 



Lowest 



Temperature (°F.): 



Mean 



Highest 



Lowest 



Mean daily range 



Greatest daily range 



Least daily range 



Mean daily relative humidity (per cent ) 



Kainl'all ( inches): 



Total 



Greatest monthly 



Greatest daily 



Number Of days on which 0.01 in. or more of rain fell. 



Mean percentage of cloudiness 



Number of days on which cloudiness averaged SO per- 

 cent or more 



Average hours of sunshine per day 



Last frost in spring 



First frost in fall 



29.982 



30.822 (Jan. I'M . 

 29.245 (Feb. 28). 



48.3 



89(JulvlTi 



— 1 



16.6 



34 Jan. 2-Dec. 2. 



2 (Nov. 18) 



79 



41.83 



6.71 (June) ... 

 1.97 (June 29) 



138 



48.6 



103. 



61.3. 



89 (July 17). 



26 (Apr. 4). 



18.7. 



76.3. 



20. IS. 



1.97 (June 29). 



65. 



42. 3. 



34. 



7 h. 19 m. 

 May 29. 

 Sept. 14. 



Report of the meteorologist, X. Helme (Rhode Island Sta. lipt. 1904, pp. 265- 

 281). — This includes general notes on the weather during the year ended June 30, 

 1904, and a tabulated record of observations at Kingston on temperature, precipita- 

 tion, cloudiness, and prevailing winds during each month from July, 1903, to June, 

 1904, inclusive, with a summary for the year ended June 30, 1904. The latter sum- 

 mary is as follows: 



Temperature (degrees F. ). — Maximum, 93, July 10, 1903; minimum, — 16, January 

 5, 1904; mean, 45.7; highest monthly mean, 69.2, July, 1903; lowest monthly mean, 

 20.6, January, 1904; highest daily mean, 81.5, July 10, 1903; lowest daily mean, —4, 

 January 4, 1904. Precipitation (inches). — Total (rain and melted snow), 50.06; 

 greatest monthly, 9.70, April, 1904; least monthly, 0.75, September, 1903; greatest 

 in 24 consecutive hours, 2.68, August 5, 1903; snowfall, total 53. Weather. — Number 

 of clear days, 156; number of fair days, 107; number of cloudy days, 103; number of 

 days on which there was precipitation of 0.01 in. or more, 118. Prevailing -wind, 

 west. 



Meteorology (Rpt. Agr. Work, Expt. Fields and Govt. Lab. {British Guiana], 1903-4, 

 pp. 3-5). — A summary is given of observations during the 6 months ended June 30, 

 1904, on sunshine and on amount and composition of the rainfall. It is estimated 

 that during the year ended June 30, 1904, the rainfall carried down to the soil "0.6 

 lb. of combined nitrogen equal to, in round figures, 3 lbs. of sulphate of ammonia 

 and chlorin equivalent in round figures to 217 lbs. of common salt per acre." 



