810 EXPERIMENT STATION RECORD. [Vol.41 



"III the I'acilic Coast States the summer is almost raiuless, except in the 

 more northern section, where showers may he expected to occur occasionally, 

 especially in the mountains. ... In the Plains States it is comparatively 

 heavy, and in New Mexico and eastern Arizona much of the annual precipita- 

 tion occurs during the summer months, mostly in July and August. In the 

 centr;;! and east Gulf and south Atlantic coast districts rainfall is usually 

 Iieavy during' this season, the totals ranging from 16 to 2.5 in., and it is com- 

 jniratively heavy also in portions of the Appalachian Mountain region, where 

 locally as much as 20 in. is received on the average. . . . 



" In the central and northern Phuns States from 4-5 to r^O per cent of the 

 annual amount occurs during this season, as a rule ; the agricultural importance 

 of that area is largely due to this fact. Large percentages of the annual 

 amount occur during the summer months also from western Texas to cen- 

 tral Arizona. Along the southern Pacific coast, however, less than 1 per 

 cent of the annual rainfall occurs during the three summer months. In most 

 of the country east of the Great Plains the percentages range from 25 to 30. 

 In this area the seasonal distribution of precipitation is comparatively uni- 

 form, except in the Florida Peninsula, v.ith no distinctive types of special agri- 

 cultural significance, although the comparatively light falls in the cotton belt 

 during much of the cotton picking season are favorable for the prosecu- 

 tion of that work." 



Weather and com, 1919 {U. S. Depf. Agr., Nat. Weather and Crop Bui., No. 

 27 {lOlD), p. 2, figs. 6). — Diagrams are given which indicate the variations of 

 temperature and rainfall from the normal, by weeks, during the season of 

 1919 in the principal corn-growing States, and also show the condition of corn 

 on the first of July, August, and September, respectively, expressed in per- 

 centages of the 10-year average. The relations of weather and crop conditions 

 are ])riefly discussed. 



Weather and winter wheat, 1913—19 (U. S. Dept. Agr., Nat. Weather and 

 Crop Bill., No. 27 {1910), p. 2, figs, f^.— Diagrams are given which show for the 

 more important winter-Avheat States the total precipitation and departure of 

 tlie mean temperature from the normal, by months from August 1918, to May, 

 1919, inclusive, and also the condition of winter wheat on the first of December, 

 1918, and April, May, and June, 1919, expressed in percentages of a 10-year 

 average. The correlation of the weather conditions and the growth and yield 

 of crop are briefly discussed. 



Everyday mistakes aboiit th^ weather, C. F. Talman {Ladies' Howe Jour., 

 86 {1919). No. 9, pp. JfO, i6S).— This article deals with popular fallacies regard- 

 ing the moon's influence on the weather, long-period forecasts, very cold winters 

 of former times, change of climate, effect of the Gulf Stream, battles and rain, 

 equinoctial storms, Indian summer, cyclones, and violent storms. 



SOILS— FEKTILIZEES. 



Soil samples, maps, and profiles, A. van Bijxert {Meded. Landhouivhoogseh. 

 [Wageningcn}, 16 {1919), No. 1-2, pp. 29-36, pis. 4). — Information is given on 

 the taking and preparation of soil samples and soil profiles, and the prepara- 

 tion of soil maps for display and instruction purposes. 



Soil survey of Mercer County, Pa., E. B. Deeter, R. A. Winston, and W. I. 

 Galt (r. ,V. Dept. Agr., Adv. Sheets Field Oper. Bur. Soils, 1917, pp. JfO, pi. 1, 

 fig. 1, map 1). — This survey, made in cooperation with the Pennsylvania Experi- 

 ment Station, deals with the soils of an area of 418,000 acres in northwestern 

 Pennsylvania, the surface of which ranges from level to hilly. 



