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WEATHER MAKING, ANCIENT AND MODERN. 269 



is the method evoked in the Espy i)lan, aud appears to be by all odds 

 the most eftective rain producer in nature. 



Q. If rain can be made, how much will it cost? — A. This is truly an 

 American question, and quite appropriate to the fin de siecle. Mr. 

 Powers, who, by the way, says that Mr. Dyrenforth did not after all 

 really try his experiment, put the cost of one experiment with Govern- 

 ment aid at $80,000. Gathman says he can sprinkle the earth at a cost 

 of from $30 to $90 a square mile. Espy jiroposed to fire the low forest 

 growths at regular intervals at a cost less than 5 mills per citizen per 

 year. The method of concussion costs the comfort and peace of all 

 within hearing, a cost which a much more certain result would not 

 justify. 



LIST OF REFERENCES TO THE LITERATURE ON THE ARTIFICIAL PRODUCTION OF 



RAINFALL. 



Atwater, John B. Cyclone-destroyer: Thiited States patent No. 370845, October 4, 1887; 2 pp., 1 pi. 

 Abbe, Cleveland. The Production of Raiu: Eeport Maryland State Weather Service, Vol. II, 1892, 



pp. C4-65. 

 . On the Production of Eain: Agric. Sci. State College Pennsylvania, Vol. VI, 1892, pp. 288-309. 



[Abstract: Amer. Met. Journ., Vol. IX, 1892, pp. 312-316; Symon'a Met. Mag., London, Vol. 



XXVII, 1892, pp. 129-137, 154-155.] 

 Bell, G. H. A Ilain Controller: Sci Amer., New York, Vol. XLIII, 1880, p. 113. 

 Bellet, Daniel La Pluie artiflcielle dans ITnde: La Nature, Parisj 23 Avril, 1892, pp. 321-322. 

 Blake, Ldcien J. Can we make it Rain ? Science, New York, Vol. XVIII, 1891, pp. 296-297. 

 Blunt, W. B. Automatic Tornado-breaker: United States patent No. 290966, December 25, 1883; 



2 pp., 2 pis. 

 Brown, L L. Automatic Transporter and Exploder for Explosives for Aiding Rainfall : United 



States patent No. 473820, April 26, 1892; 2 pp., 1 pi. 

 Brdegmann. H. Einwirkung des Kanonendonners auf die Eegenbilduiig: Petermann's Mitth., 



Gotha, 1862, pp. 439-440. 

 Curtis, George E. Ram Making in Texas: Nature, London, Vol. XLIV, 1891, j). J94. 

 . Rain Making in Texas: The Inventive Age, Washington, Vol. Ill, 1891, p. 2. 



The Facts About Rain Making: Engin. Mag., New York, Vol. Ill, 1892, pp. 540-551. 



CuRTiss, G. G. The Production of Rain; Report Maryland State Weather Service, Vol. II, 1892, pp. 



63-64. 



Davis. W. M. The Theories of Artificial and Natural Rainfall; Amer. Metl. Journal, Ann Arbor. 

 Vol. VIII, 1891-92, pp. 493-502. 



Der Ejnfiuss des Krieges auf die Witterung: Dlustr. Zeitung, Leipzig, B. II, 1870, No. 1418. 



Dyrenfoeth Robert G., and Xewcojib, Simon. Can We Make it Rain ? N. Amer. Rev., New York, 

 Vol. CLIII, 1891. pp. 385-404. 



Espy, James P. Artificial Rains [from the National Gazette] : In "Philosophy of Storms," 8°, Bos- 

 ton 1841, pp. 492-518. 



To the Friends of Science (on producingrain by artificial means), 8-' (Philadelphia), 1845; 6 pp. 



■ (Concerning the artificial production of rain). In his Fourth Met. Report; 34th C(mg., 3d ses- 

 sion. Senate Ex. Dor. 65. 1857, 4°. 



Fernow B. E. Artificial Ram: Report Secretary of Agriculture, 1890, pp. 227-236. 



Gathman, Louis. Method of Producing Rainfall: United States patent No. 462795, November 10, 



1891; Ip., 1 pi. 

 Gathman. Louis Rain Produced at Will: 8°, Chicago, 1891; 61 pp. 

 Gatta, L La Guerra e la Meteorologia. Considerazioni intorno agli efletti dello spare dell' arti- 



glieria e della fucileria suUo stato dell' atmosfera: 4°, Roma, 1875. 

 Guyot, p. Faut-il tirer le Canon pour avoir de la Pluie? Sci. pour Tons, Paris, T. XVII, 1872, i)p. 



230-238, 244. 

 Hazen, H, a. The Production of Rain: Report Maryland State Weather Service, 1892, Vol. II, 



pp 69-70. 



. Rain Making; Sci. Amer., New York, October 31, 1891, p. 277. 



Hazewell. C. C. Weather in War: Atlantic Mon., Boston, May, 1862, pp. 593-606. 



Houston, Edwin J. Artificial Rain Making: Jour. Franklin Inst., Philadelphia, Vol. CXXXII, 



1891 (October), pp. 308-315; Sci. Amer. Suppl., No. 824, October 17, 1891, p. 13161. 

 L — -. Artificial Production of Rain: Science, Cambridge, Vol. Ill, 1884, p. 276; LaNatura, Milano, 



Vol. I, 1884, p. 270. 



