722 EXPERIMENT STATION RECORD. 



The red rain examined contained solid matter to the amovint of 19.64 gm. per liter. 

 This material was subjected to microscopic and chemical examination. The chem- 

 ical composition was as follows: Silica, 57.75 per cent; oxid of iron and alumina, 34.94 

 per cent; magnesia, 2.22 per cent, and lime, 4.87 per cent. The author concludes from 

 his study of this material that it is of meteoric origin. 



The dust fall of March 10 and 11, 1901, H. Svoboda (Ztschr. Landw.Vermchw. 

 Oesterr., 4 {1901), p. SGO; «6.s. in Ceuthl. Arjr. Chem., SI {1902), No. 3, p. ^Oi).— Studies 

 similar to those noted above are re[Jorted. The source of the dust is considered to 

 be the deserts of North Africa. 



The chemical and meteorological history of the atmosphere, J. Stevenson 

 {Meteor. /Aschr. [T7m/irt], 18 {1901), pp. 417-4'-'0). 



Climate and the effects of climate, H. li. Mill {Quart. Jour. Meteor. Soc. Lon- 

 don, 27 {1901), pp. 169-184). 



Climate, vegetation, and drainage of Cascade Mountains of northern 

 Washington, I. C. Russell {.Tour. School Oeogr., .5 {1901), pp. 281-289). 



A study of the agricultural meteorology of the district of Leon, Mexico, 

 in its relation to ordinary and improved culture, J. M. Garcia Munoz {Mem.y 

 Rev. ;Soc. Cient. '■'■Antonio Ahote,'' PJ {1901), No. 1, pp. 5-29). — This question was 

 studied with reference to corn during 1893 to 1896. It was found that with the 

 same meteorological conditions the yields were greatly increased by improved 

 methods of culture. 



Meteorological atlas of the Argentine Republic, E. A. S. Delachaux {Atlaa 

 meteorologico de la Repuhlicn Argentina. Buenos Ayres: Campania ,md-americana de bil- 

 letes de banco, 1901, pt. 1, pp. 24, maps 24)- — Part 1 is devoted to the Province of 

 Buenos Ayres. 



The hail protection congress of Novare, Italy, V. Vermorel {Grele, 2 {1901), 

 No. 12, pp. 3-9).— \ brief account of this congress, held October 22, 23, and 24, 1901. 

 It is stated that the attendance was smaller and the interest less marked than at 

 previous Italian congresses. The author thinks that before going further in this 

 matter it is necessary to know what has been accomplished and what it is possible 

 to accomplish by means of cannonading. No real advance is now being made in 

 settling the question. 



The influence of cannonading on rain and storms, J. ]\I. Pernter {Meteor. 

 Ztschr. [ Vienna'], 18 {1901), pp. 371, 372). 



Shooting away hailstorms, E. P. Lyle, jr. {Pearson'' s Mag., 12 {1901), No. 72, 

 pp. 651-660, figs. 6). 



Weather shooting in ancient times, J. M. Pernter {Meteor. Ztschr. {Vienna'], 

 18 {1901), p. 372). 



Driving frost from fruit, M. Tindal {Pearson's Mag., 12 {1901), No. 71, pp. 552- 

 554, figs. 4) . 



How is temperature measured? K. Arndt {Prometheus, 12 {1901), No. 622, pp. 

 792-795, figs. 2). — A brief explanation and discussion of the construction of different 

 kinds of thermometers. 



Instructions for the care and management of sunshine recorders, C. F. 

 Marvin ( V. S. Dept. Agr., Weather Bureau Doe. 252, pp. 19, figs. .5).— The second edition 

 of these special instructions for the information and guidance of Weather Bureau 

 observers. 



The forecaster and the newspaper, H. M. Watts {Washington: Government 

 Printing Office, 1901, pp. 22, figs. 6) . — This is a paper read before the recent convention 

 of Weather Bureau officials at Milwaukee, Wis., giving in full views briefly presented 

 elsewhere (E. S. R.. 12, p. 1018). 



