SHORT MEMOIRS ON METEOROLOGICAL SUBJECTS. 



[Translated by Cleveland Aebe.1 



CONTENTS 



A. — Hann. — On the Dimiuution of Aqneous Vapor with Increasing Altitude in the 

 Atmosphere. 



[Zeitschrift Oest. Met. Gesell., 1874, ix, pp. 193-200.] 



B, — Hann. — On the Influence of Eainfall upon the Barometer. 



[Zeitschrift Oest. Met. Gesell., 1874, ix, pp. 289-296.] 



C. — Hann. — Additional Note by Hann. Atmospheric Pressure and Eain. 



[Zeitschrift Oest. Met. Gesell., x, pp. 11-13.] 

 D. — Hann. — The Laws of the Variation of Temperature in Ascending Currents of Air. 



[Zeitschrift Oest. Met. Gesell., 1874, ix, pp. 321-346.] 



E. — SOHNCKE.— Additional Note by Sohnclie. 

 [Zeitschrift Oest. Met. Gesell., x, pp. 56-58.] 



r. — Eeye. — Additional Note by Eeye. On Eainfall and Barometric Minima. 

 [Zeitschrift Oest. Met. Gesell., x, pp. 65-70.] 



G. — Hann. — On the Eelation between the Difference of Pressure and the Velocity of 

 the Wind according to the Theories of Ferrel and Colding. 

 [Zeitschrift Oest. Met. Gesell., 1875, x, pp. 81-106.] 



H. — Ferrel. — Eeply to the Criticisms of Mr. Hann. 



[Zeitschrift Oest. Met. Gesell., x, 1875, p. 254.] 

 T. — Colding. — Some Eemarks concerning the Nature of Currents of Air. 



fOversigt d. K. Danske Vid. Sels., 1871, p. 89.] 



J, — Colding. — Abstract of Colding's Second Memoir. 

 [Zeitschrift Oest. Met. Gesell., x, p. 141.] 



K. — Peslin. — Eelation between Barometric Variations and the General Atmospheric 

 Currents. 

 [Bulletin International de I'Observatoire de Paris, 1872, May to July.] 



A. 



THE DIMINUTION OF THE AQUEOUS YAPOR OF THE 

 ATMOSPHERE WITH INCREASE OF ALTITUDE. 



By Dk. Julius Hann. 



[Translated by Cleveland Abbe from the Journal of the Austrian Meteorological Association, vol. ix, 



pp. 193-200, July, 1874.] 



Mr. Richard Stracliey has published, in the Proceedings of the Royal 

 Society of London, March, 1861, a valuable work "On the Distribution 

 of Aqueous Vapor in the Upper Parts of the Atmosphere." In this, he 



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