METEOROLOGY WATER. 615 



METEOHOLOGY— WATER. 



Agricultural meteorology, G. Costanzo and C. Negro (Metcorologia Agricola. 

 Milan, 1911, pt). XI+205, figs. 27). — Different chapters of this book treat of 

 the air, temperature and its distribution, aqueous vapor, condensation, precipi- 

 tation, atmospheric pressure, winds, atmospheric circulation, storms, atmos- 

 pheric electricity, and plant life and meteorological facto.rs. A short bibliog- 

 raphy is given. 



Meteorological conditions and their effect on agriculture in Cuba, 1910, 

 L. G. Y Caebonell {Bol. Ofic. Sec. Agr. Cuba, 10 {1911), No. 2, pp. 167-189, 

 pis. 2). — Summaries of observations on pressure, temperature, and precipitation 

 in different parts of Cuba are accompanied by a brief discussion of the effect 

 of the meteorological conditions on the growth of crops. 



Meteorological observations at the Massachusetts Agricultural Experi- 

 ment Station, J. E. Ostrander and C. M. Damon (Massachusetts Bta. Met. 

 Buls. 265, 266, pp. 4 each). — Summaries of observations at Amherst, Mass., on 

 pressure, temperature, humidity, precipitation, wind, sunshine, cloudiness, and 

 casual phenomena during January and February, 1911. The data are briefly 

 discussed in general notes on the weather of each month. 



Water supply (Surveyor, 39 (1911), No. 993, pp. 116-121).— The progress in 

 worlv on this subject during 1910 is reviewed, advances in legislation, construc- 

 tion, and water purification being noted. 



The conservation of water, J. L. Mathews (Boston, 1910, pp. VIII +289, 

 pis. 32). — Different chapters of this book discuss in a popular way water as a 

 resource, floods and flood prevention, storage, municipal supply and the purifi- 

 cation of rivers, water power — the mining of the " white coal," water power in 

 national development, swamp drainage, irrigation, conservation of the soil, nav- 

 igation, and the results of the conservation of water. 



The fundamental idea underlying the treatise is that " water power, irrigation, 

 swamp drainage, navigation, and soil preservation — these, with forestry, are 

 the great profit makers for the Nation in the conservation of water," and water 

 resources should be under strict governmental control in order to secure the 

 greatest beneficial use. 



A study of the normal constituents of the potable water of the San Fran- 

 cisco peninsula, J. P. Mitchell (Leland Stanford Jr. Univ. Pubs., Univ. Ser., 

 1910, No. 3, pp. 10, map 1). — The investigations here reported are an extension 

 of a preliminary survey of the waters of the eastern hydrographic basin of the 

 San Francisco peninsula, by D. M. Greer, and were undertaken " to determine 

 the normal constituents of the potable water of the San Francisco peninsula, 

 from a sanitary point of view, and before the growth in the population affects 

 too seriously the natural purity of the water supplies. The significant con- 

 stituents, and the interpretation of water analyses, are discussed briefly. The 

 area studied included approximately 675 square miles lying south of Baden 

 station on both sides of the peninsula. This was divided into 26 subdivisions, 

 13 on each side. The characteristic topographical and climatological features 

 of the region are described in detail. Especial emphasis is laid on the distribu- 

 tion of the rainfall, the presence of the strong ocean ' trade winds,' both of 

 which are iieculiarly characteristic of the Pacific coast of California, and on 

 the resulting, very marked, seasonal variation in the constituents of all the 

 waters." 



The results of a personal survey of each watershed, as well as of determina- 

 tions of turbidity, sediment, color, odor, loss on ignition, free and albuminoid 

 ammonia, nitrates, aud nitrites in 240 samples of stream, spring, and reservoir 



