114 EXPERIMENT STATION liECOKD. 



77-82). — Monthly summaries of dliservatioiis on temppratiire. precipitation, 

 and humidity at this phice during 11)00 are .given. 



Meteorological observations in German East Africa, I'. IIeidke {Mitt. 

 Forsch. Reis. u. Gclchrten Dent, ^chutzgeh.. 19 (1906), No. 1, pp. -',0-106).— 

 Observations at 22 stations during 1899-1902 are summarized. 



Rainfall observations in German East Africa, C. Uhlig (Mitt. Forsch. 

 Reis. u. Gelehrten Dent. Schntzgel)., IS (1905), p. 332; 19 (1906), Nos. 2, pp. 

 164-180 ; 3, pp. 274-290; //, pp. 305-335 ) .—Observations at some 70 places during 

 years are smnmarized. 



The Innsbruck good weather wind, A. Defant (Separate from Ber. Natunc. 

 Med. Vcr. Iiiiishnick, 30 (1905-6), pp. 16, fui. 1). 



Official experiments on hail protection in Italy, Yidal (Bui. -S'oc. Nat. Agr. 

 France, 67 (1907), No. 5, pp. 386-JtOO, figs. 2). — The author talves exceptions to 

 the conclusion from the official tests at Castel-Franco, near Venice, that can- 

 nonading is useless as a means of dissipating hailstorms and states that the 

 results obtained in France lead to the opposite conclusion. 



A rain gage for agricultural purposes, Grohmann (///»>*. Lan<lu\ Ztg., 

 27 (1907), No. 49, p. 4-1,1, -jig. 1). — Simple and convenient forms of a rain gage 

 with measuring apparatus are described. 



The psycho-physical aspect of climate, with a theory concerning inten- 

 sities of sensation, W. F. Tyler (Jotir. Trop. Med. and Hijg., 10 (1907), No. 

 8, pp. 130-149, flgs. 26; rev. in Set. Amer. Sup., 64 (1907), No. 16J,5, p. 19).— 

 The author describes a scheme for the utilization of certain psychical phe- 

 nomena (personal sensations) as a means of synthesizing meteorological meas- 

 urements recorded by physical apparatus and proposes certain sensation scales 

 " for correlating these personal sensations with the instrumental meteorological 

 measurements corresponding to theui." 



Denudation and rainfall, C. Kassner (Mitt. Justus Perthes' Geogr. Anst., 53 

 (1907), No. 2, pp. -',6, 7/7; ahs. in Science, n. ser., 25 (1907), No. 6-',9, pp. 909, 

 910). — It is suggested that in regions of subdued mountain forms there is now 

 probably less rainfall than before leveling, due to erosion, took place, and that 

 the former rainfall distribution can be estimated upon the basis of the approxi- 

 mate land elevation before denudation took place. 



A reviewer, M. S. W. Jefferson, of Kassner's article, however, suggests that 

 in many cases denudation has been accompanied by a compensating regional 

 uplift, so that there has i)rohal)ly been in such cases little change in rainfall. 



The rainfall in the department of Puy-de-D6me, J. K. Plumandon (Rev. 

 Auvergne, 23 (1906), No. 4, pp. 2-',7-26J,, charts 2).— The distribution of the 

 rainfall of this region with reference to topography, elevation, etc., is discussed 

 in some detail. It is shown that there is no invariable relation betneen rain- 

 fall and elevation, but in accounting for distribution of rainfall it is necessary 

 to take account not only of the absolute and relative elevation of the region 

 under consideration, but also of the topography of the surrounding coxmtry, the 

 form of the average isobars, and the direction of the winds. 



Change in the climate of Kansas, F. II. Snow (Trans. Kans. Acad. Sci., 20 

 (1906), pt. 2, pp. 288-291; Quart. Rpt. Kansas Bd. Agr., 26 (1907), No. 101, 

 pp. 438-440). — Replying to a recent article by the Chief of the Weather Bureau 

 of this Department (E. S. R., 18, p. 1109), the author quotes his own records 

 at the University of Kansas, Lawrence, Kans., covering a period of oO years 

 (1868-1906), to show that there has been an increase of rainfall and humidity 

 and a decrease in velocity of the wind. 



The author concludes that his observations " indicate a gradual change in the 

 climate at Lawrence, Kans. And as this locality presents a typical illustration 



