METEOROLOGY WATER. 113 



of the Middle Atlantic States, and New England. The combined effect of high 

 temperatnre and deficient rainfall during the latter part of August and through- 

 out the most of September, October, and November resulted in one of the most 

 disastrous droughts in the meteoi'ological history of those districts." 



Monthly Weather Review (Mo. Weather Rev., 37 (1909), Nos. 1, pp. l-.',2, 

 figs. 13, charts 11; 2, pp. '/3-S-}, figs. 5, charts S). — In addition to the usual re- 

 ports on forecasts, warnings, weather and crop conditions, meteorological tables 

 and charts for the months of January and February, 1909, recent papers bearing 

 on meteorology and seismology, recent additions to the Weather Bureau library, 

 Weather Bureau men as educators, etc., these numbers contain the following 

 articles and notes : 



No. 1. — The Pressure of a Saturated Vapor from Water and Ice as Measured by 

 Different Authorities, by C. F. ^Marvin ; Summer and Winter Vertical Tempera- 

 ture Gradients, by W. J. Humphreys ; The Formation of Hail, by J. B. Gibson ; 

 The Importance of Systematic Observation of Persistent Meteor Trains, by 

 C. C. Trowbridge ; Transformations of Snow Crystals, by A. Erman ; The Crys- 

 tallization of Undercooled Water (illus.), by B. Weinberg; Recent Extensions of 

 the Canadian Meteorological Service; Theories of the Color of the Sky, by E. A. 

 Nichols ; Duststorms in Texas ; The Aurora Polaris ; A Study of Overcast 

 Skies (illus.), by E. L. Nichols; Rain with Low Temperature, by A. L. Rotch; 

 Great Inversions of Temperature, by A. J. Henry ; A Portable Rotation Psy- 

 chrometer (illus.), by P. J. O'Gara ; The Psyclirometer — rotated, whirled, ven- 

 tilated ; The Source of Our Cold Waves, by R. F. Stupart ; The Climate of the 

 Glacial Epoch, by H. Arctowsky; A Plea for Terrestrial and Cosmieal Physics, 

 by L. A. Bauer ; and Retirement of Professor Klossovskii, by A. Ziwet. 



No. 2. — Summary of Ice Conditions of the Great Lakes, by N. B. Conger ; 

 Studies on the Vortices in the Atmosphere of the Earth (illus.), by F. H. Bige- 

 low ; Dry Farming ; Some Climatic Features of Wyoming, and Their Relation 

 to Dry Farming (illus.), by W. S. Palmer (see p. 114) ; Attendance on Scien- 

 tific Meetings, by W. J. Humphreys; A Proposed New Formula for Evaporation 

 (illus.), by C. F. Marvin; Changes in the Monthly Weather Review; Weather 

 Words in All Languages ; Winter Aridity Indoors, by M. S. W. Jefferson ; In- 

 fluence of Mountains and Coasts on Storms, by D. T. Smith; Barometric Pres- 

 sure and Earth Pulsation, by N. Shimono ; Researches on the Solar Constant 

 and the Temperature of the Sun, by J. Scheiner ; The Blanket Eff'ect of Clouds, 

 by W. W. Coblentz; Mean Annual Temperatures for Mexico and Central Amer- 

 ica ; and An Annotated Bibliography of Evaporation, by Mrs. G. J. Livingston. 



[Annual meterolog'ical summary, 1908], A. J. Mitchell (Fla. Quart. 

 Bui Agr. Dcpt., 19 (1909), No. 2, pp. 25--'tl ) .—This is the report of the Florida 

 section of the Cllmatological Service of the Weather Bureau of this Department, 

 and contains summaries of the weather conditions (temperature, including 

 killing frosts, precipitation, and cloudiness) during each month of the year, 

 l)ased upon observations at a large number of stations in different parts of the 

 State. 



Meteorolog'ical observations (Maine t^ta. Bui. 163, pp. 387-389). — The usual 

 summaries of observations on pressure, temperature, precipitation, cloudiness, 

 and wind movement at Orono, Me., and on precipitation at various places in the 

 State during 1908 are given. The mean atmospheric pressure for the year at 

 Orono was 29.S5 in. The mean temperature was 44.66° F., the mean for 40 

 years being 42.27''. The total precipitation was 37.51 in., the mean for 40 years 

 being 43.58 in. The snowfall was 73.2 in., the average for 40 years being 91.4 

 in. The number of cloudy days was 127. 



" The year 1908 differed from the average year in several very important 

 respects. Every month but three was warmer than the average. January was 



