28 EXPERIMENT STATION RECORD. 



rainfall, tension of aqueous vapor, wind, cloud, and sunshine at the 

 summit of Ben Nevis during 13 years, January, 1885, to December, 



1897, inclusive, have been grouped in periods of clear weather (S-l or 

 more hours during which no fog was recorded), and of foggy weather 

 (3 or more consecutive days during which fog was recorded at ever}^ 

 hour). The tabular data show that the maximum rainfall during any 

 one day of the 13-}' ear period was 7.29 in.; the maximum for any one 

 hour 0.85 in. There was a large and continuous excess of atmospheric 

 pressure in clear w^eather over that in foggy weather, the mean yearly 

 excess being 0.456 in. In foggy weather the vapor tension was that 

 of saturation at the temperature of the air, and the variations were 

 slight. In clear weather the variations were considerable. The mean 

 yearl}^ temperature was 3.57° F. higher in clear than in foggy weather, 

 the maximum monthly excess being greatest in June, when it reached 

 10.11°. In the first 3 months of the vear, however, the temperature 

 was higher in fogg}- w^eather than in clear weather, the excess being 

 2.92° F. in February. The range of mean hourly temperature was 

 much greater in clear than in foggy weather in every month. A noc- 

 turnal heating during the winter months was ol)served l)oth in clear 

 and in foggy weather, though it was more pronounced in the clear 

 weather. 



The climate of New York, E. T. Ti-rner {Bui. Atiicr. Geoffr. Soc, 1900, No. 2).— 

 It is stated in Science, n. ser., 11 {1900) , N^o. 285, p. 955, that tliis article " is largely 

 a reprint of a report upon the same snljject by Mr. Turner, originally published in the 

 Fiftli Annual Rejiort of the Meteorological Bureau and Weather Service of the State 

 of New York (Albany, 1894, pp. 347-457). Several new charts have, however, been 

 added, including some typical barograph and thermograph curves, and two thunder- 

 storm charts." 



Meteorological observations, J. E. OsTRANDERand A. Oslo's x's^x-i^ {Massachusetts 

 Hatch Sta. Met. JjuIs. 1S.3, 134, 135, pp. 4 each). — Daily and riionthly summaries of 

 observations at Amherst, Mass., on pressure, temperature, humidity, precipitation, 

 wind, sunshine, cloudiness, and casual phenomena during January, February, and 

 March, 1900, with notes on the general characteristics of the weather of those months. 



Meteorological record ( Xe^r York State Sta. Rpt. 1898, pp. 569-577). — This includes 

 a niontiily summary (if precii)itation at Geneva, N. Y., during 17 years, 1SS2-1S98; 

 and daily and monthly records of the direction of the wind during 1898 and of tlie 

 temperature during 1898 and during 5 years, 1894-1898. 



The weather {Ontario Bureau Ind. Rpt. 1898, pp. 1-4). — Monthly summaries of 

 observations at different points in Ontario (with averages for the Province) during 

 the growing season (April to September) of 1897 and 1898, with averages for 1892- 



1898, on temperature, precipitation, sunshine, etc. 



SOILS. 



The soluble salts of cultivated soils, F. H. King and J. A. 

 Jeffery {Wiscomin Sta. Rpt. 1899, pp. ^19-^J^3,figs. 3).— In order 

 to study the influence of tillage on the soluble salt content of soils 

 determinations were made of soil moisture and solu])le salts in 1 ft. 



