METEOKOLOGY WATEB. 511 



Frost studies. — Determining probable minimum temperatures, A. G. 

 McAdie {Mo. Weather Rev., J,! {1913), No. Jf, pp. C2S-625).— Observations are 

 briefly cited whicb indicate " tliat in future studies concerning tbe best methods 

 of frost protection special attention must be given to tbe moisture content of 

 tbe air. Tbis factor seems to play a controlling part in determining minimum 

 temperatures. Not only tbis, but it is of great importance in connection with tbe 

 maintenance of proper plant functions, especially in connection with trans- 

 piration." 



The rainfall of Berkeley, Cal., W. G. Reed {Univ. Cal. Puhs., Geogr., 1 

 {1913), No. 2, pp. 63-79, pi. 1, figs. 6; abs. in Mo. Weather Rev., 41 {1913), No. 4, 

 pp. 625-627, figs. 3).— Tbis is a record of 25 years' observations at the Univer- 

 sity of California in cooperation with tbe U. S. Weather Bureau. Tbe results 

 are recorded for a rainfall year from July 1 to June 30 rather than for the 

 calendar year, "as the rains at Berkeley are of the type known as subtropical, 

 dry summers and winter rains under cyclonic control, so that tbe autumn rains 

 should be grouped with those of tbe whiter and spring of the following and not 

 of tbe same calendar year." 



Tbe mean precipitation for tbis rainfall year is 26.6 in. but varies widely for 

 individual years. "Tbe greater part of the rains occur between the beginning 

 of November and the end of March, but rains are not uncommon except in July 

 and August, which months are usually dry. . . . The record fails to show any 

 progressive change in the amount of precipitation." 



Surface water supply of North Pacific coast, 1910, F. P. Henshaw, E. C 

 Lakue, and G. C. Stevens {U. 8. Geol. Survey, Water-Supply Paper 292, 1913, 

 pp. 685, pis. 3). — This paper contains a description of tbe river basins of the 

 North Pacific coast and the results of stream measurements in them, namely, 

 gage-height records, results of current-meter measurements, and daily and 

 monthly discharges. 



Surface water supply of Hudson Bay and upper Mississippi River, 1911, 

 R. Follanseee, a. H. Hoeton, and H. J. Jackson {U. S. Geol. Survey, Water- 

 Supply Paper 305, 1913, pp. 197, pis. 4, figs. 2). — This paper presents briefly tbe 

 results of measurements of flow made in streams in tbe drainage basins named 

 during the calendar year 1911, including tables giving gage heights and daily 

 and monthly discharges at each station. 



Surface water supply of western Gulf of Mexico, 1911, W. W. Follett, 

 W. B. Freeman, and G. K. Larrison {V. S. Geol. Survey, Water-Supply Paper 

 308, 1913, pp. 117, pis. 4). — Tbis is a report on the results of measurements of 

 the flow of streams in this drainage basin, made during the year 1911. including 

 tables giving gage heights and daily and monthly discharges at each station. 



Water resources of Hawaii, 1909-1911, W. F. Martin and C. H. Pierce 

 {V. S. Geol. Survey, Water-Supply Paper 318, 1913, pp. 552, pis. 15, figs. //). — 

 Tbis volume contains results of measurements of the flow of certain streams 

 and ditches in tbe Territory of Hawaii made during the period 1909 to 1911, 

 inclusive, rainfall and evaporation records, an account of tbe factors that 

 affect the flow, and a brief summary of the general conditions influencing the 

 economic development and use of the surface waters. It also contains an 

 appendix comprising notes on the pronunciation and meaning of Hawaiian 

 geographic names and a gazetteer. 



The underground water resources of the coastal plain province of Virginia, 

 S. Sanford {Va. Geol. Siirvey Bui. 5, 1913, pp. XV-^361, pis. 3, figs. 7). — This 

 report deals with an area of about 9,500 square miles, corresponding roughly 

 with what is known as Tidewater Virginia. It "covers the occurrence and 

 character of both shallow and deep waters, the geological relations of water 

 beds, extent of artesian horizons and areas in which flowing wells can be had, 



