206 MONTHLY WEATHER REVIEW JUNE 1936 DUSTSTORMS IN THE UNITED STATES, JUNE 1936 By J. P. BOHLER Duststorms were somewhat more frequent, but less visibility was reduced to 200 feet for n period of 10 severe, in June than in the preceding month. The in- minutes, and the wind maintained a velocity of 67 miles creases in number of duststorms are directly attributable per hour from northwest for a period of 5 niinutes. One to subnormal precipitation. Percentages of normal rain- and twenty-three hundredths inches of rain was recorded fall, given by preliminary but rather complete records, at t8he Weather Bureau Station. Damage was con- support this contention. The Dakotas, hlinnesota, Ihn- fined niosbly to windows and t’rees. A dense duststorm on sas, Tennessee, and Indiana had less than 40 percent, and the 12th in northenstern Montana reduced horizontnl Iowa, Nebraska, Oklahoma, and Tesas GO percent or less, risibility to nearly zero and effected considerable soil of the normal monthly rainfall. erosion. Comparison of the accompanying chart with that for There were no reports of loss of life due to duststorms hiay brings out several notable diflerences. The eastern in the month of June. boundary of the dust area receded from western Pennsyl- vania to the extreme western portion of Ohio; Pennsyl- vania received approximately 94 percent of normal rain- fall. Simildy the northwestern limits migrated toward the interior because of above normal precipit.‘1 t’ion over the States of Idaho and Wyoming. Further, three nitis- ima of light dust were centered in the following sections: North Dakota and southeastern Montana; central and southern Illinois; Oklahoma, New Mexico, and portions of adjoining States. Areas of dense dust, delineated by cross-hatch lines, are small and widely scattered-the direct consequence of weak cyclonic movement during the summer months. Duststorms eflected no material damage to crops, partly because of advanced deterioration due to drought conditions and the weak charttcter of the duststorms. However, in several instances, dense duststorms attained sufficient force to cause discomfort to inhabitants. On the 2Gth, Sioux City, Iowa, had a duststorm of considerable Number of days with duststorms or dusty conditions, June 1836. severity. The storm approached from the northwest, BIBLIOGRAPHY

C. FITZHUGHTALMAN, i71 Charge of Library RECENT ADDITIONS Dorochov. L. M. An instrument for the determination of humidity in an air The following hnve been selected from among the titles current during physiological research. Moscou. 1935. of books recently received as representing those most pp. 273-276. illU6. 26 cm. (Compte8 rendus (Doklady) likely to be useful to Weather Bureau officials in their de l’Acad6mie des sciences de 1’URSS. 1935. vol. I1 meteorological work and studies: (VIII), no. 6. (66.) Nouvelle sCrie.) Edstrom, Gunnar. Arctowski, H., h Teila, J. Studies in natural and artificial atmospheric electric ions. etude des transports de masses atmosphh-iques survenus au Lund. 1935. 83 p: incl. illus., tables, diagrs. 23:; cm. cours du mois de mars 1931. Lwow. 1935. pp. 160-189; (On cover: Acta medica scnndinnvica. Supplenienturn LSI). diagrs. 25 cm. (Institut de gCophysique de 1’Universite Summary also in German. “Works of reference”: pp. [72]- de Laow. Communication No. 101.) 83. Baldit, A. Doporte, Mariano. Les perturbatioiis dues au relief terrestre et l’aviation. Paris. El coeficiente de turbulencia y la varisci6n del viento con la 1935. 46 p. diagrs. 28 cm. (Extrait de “La MBtBoro- altura sobre Madrid. n. p. 1936. pp. 39S303. tab., logie” no 121, juin 1935.) diagr. 21 cm. (Publicade en Anales de la Sociedad Bayfield, E. G. espdola de fisica y qulmica, t.SXSIV, pag. 298.) The influence of climare, Soil, nnd fertilizers upon qiiality of Fisher, Reginald Gilbert. soft winter wheat. Wooster. 1936. 77 p. maps (1 fold.), tables. 23 cin. (Ohio agricultural experiment station. The relation of North American prehistory to post-glacial Bulletin 563. March, 1936.) climatic fluctuations. Albuquerque, N. M. 1835. 91, s p. illus. (maps),. diagrs. 38 cm. (The University of New Compton, Karl T. hiesicoltxilletin. Monograph series, v. 1, no. 2; whole no. The government’s responsibilities in science. [New York.] 274.) A monograph of the University of New Mexico and 1935. 8 p. 28 cin. (Reprinted from Science, April 12, the School of American research.” 10-page bibliography at 1935, v. 81, no. 2102, pp. 347-355.) end. Deppermann, Charles E. Glawion, Horst. The mean transport of air in the Indian and South Pacific Wetter und Klima Vorpommerns dargestellt nm Beispiel oceans. Manila. 1935. 13 p., 1s PIS. 4335 cm. (At head Griefswald. Griefswald. 1933. 115 p. figs., tables. plates of title: Weather bureau. hlrtnila central observatory.) pp. S5-113. (1naug.-Dissertation Griefswald.)

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