422 EXPERIMENT STATION RECORD. 



beaui of the sun, the reflectiug power of clouds, indirect solar radiation, income 

 and outfio of beat from the earth and the dependence of its temperature thereon, 

 and variations of solar radiation and their effects on the temperature of the 

 earth: and Tart III with the radiation of diff(>rent parts of the sun's disk, in- 

 cluding chapters of the phenomenon of varyinjj: hrijihtness of the solar disk and 

 possible explanations of it, arrangements for observing the distribution of radia- 

 tion over the sun's disk, and results of observations of the brightness of the 

 solar disk. 



Solar heat received by the surface of the soil, J. Loisel (Bid. Sac: Astron. 

 France, n)OS, May, pp. 229-232, figs. 2; ahs. in Nature [London], 7'.s' (in08). No. 

 2012, p. 66). — This article discusses the relationships between the activity of 

 various solar pLienomena and the amount of heat received at the earth's surface. 

 The discussion is based upon observations made at Montpellier during the period 

 1883 to 1901. " Plotting the actinometric results obtained at Montpellier, to- 

 gether with the frequency curves for sun spots, facuhe, and prominences. Doctor 

 Loisel shows that they are distinctly analogous, but the terrestrial variation is 

 an inversion of the solar variations." 



On the origin of atmospheric ozone and the causes of variations in the 

 carbon dioxid of the air, H. Henriet and M. Rouyssy {Compt. Rend. Acad. 

 Sci. [Paris'], lJi6 {190S), No. 19, pp. 977, 978). — This is a summary of results of 

 extensive investigations which have been reported in other journals. 



The investigations led to the conclusion that the ozone of the air results from 

 the action of ultra-violet rays of the sun on the oxygen of the upper atmosphere, 

 and is brought to the lower layers of the air by the winds and rains. When the 

 air is very calm and clear a certain amount of ozone Is formed in the lower 

 layers of the air by the action of the sun's rays. All variations of the carbon 

 dioxid below the normal are due to the upper air, the carbon dioxid thus varying 

 inversely as the ozone. Variations above the normal are due to local causes 

 such as respiration of men and animals in large cities, fires, exhalations from 

 soils, and the like. 



Meteorological observations at Storrs for the years 1905 and 1906, W. M. 

 EsTEN (Connecticut l^^torrs ^ta. Itpt. 1907, pp. 163-179). — This is a record of ob- 

 servations on temperature and precipitation during each month of 1905 and 1906 

 at Storrs, the rainfall during the six months ended October 31, 1905, and for 

 the same period in 1906, at 20 places in Connecticut, a suumiary of rainfall for 

 the six months ended October 31 for 20 places in Connecticut during the IT years 

 1SS9-1905, the monthly mean temperature and monthly precipitation for 18 

 .vears (18SS-1905), and dates of last and first killing frosts for IS years. 



Meteorological summary for 1906, C. A. Patton (Ohio Sta. Bui. 185, pp. 

 295-310). — This suumiary includes as usual notes on the weather of each month 

 and tabulated daily and monthly records of observations at the station at Woos- 

 ter, Ohio, on temperature, precipitation, cloudiness, direction of the wind, etc., 

 and for comparison, similar data for 19 previous years (1888-1906) at the sta- 

 tion and for 24 years (1883-1906) in other parts of the State. 



The mean temperature for the year at the station was 50.7° F. ; for the State 

 51.6°; the highest temperature at the station 92°, June 29: for the State 101°, 

 August 21 ; the lowest temperature at the station —14, February 7 ; for the State 

 —23°, February 6. The annual rainfall at the station was 42.8 in., for the State 

 36.87 in. The number of rainy days at the station was 142, for the State 124. 

 The prevailing direction of the wind was south at the station and southwest for 

 the State. 



The weather during the agricviltural year, 1906-7, F. J. Brouie (Jour. Roy. 

 Ayr. Sloe. Enylnnd. 68 (1907). pp. .?S'.0-2.06').— Data are given for rainfall, tem- 

 perature, and sunshine at various points in the United Kingdom during 1906-7 



