AGRICULTURAL ENGINKERING. 899 



this disease, but were unable to isolate any speeific organism. The symptoms are 

 ilescribetl as fairly well markeil. A striking weakness is observed about 24 liours 

 after infection, the wings are allowed to drooj), and the I)irds appear sleepy. Oceu- 

 sionally a discharge from the nose is observed. The body temperature exhibited a 

 wide range during the progress of the disease, reaching 43° C. in some cases and 

 falling as low as 27.5° C. shortly before death. One of the most characteristic symp- 

 toms is a dark blue color of the coml) and wattles, and from this symptom the authors 

 propose the name cyanolophiea gallinarum. An organism was isolated, but it was 

 shown afterward that this had nothing to do with the disease. Experiments demon- 

 strateil that the organism of the disease easily passes through a Berkefeld filter. 



Text-book of veterinary medicine, J. Laav {Jthaca: J. Law, 1896, Vol. I, pp. 

 411; 1900, Vol. II, pp. 574; 1901, Vol. Ill, pp. 001).— In this general treatise the 

 purpose of the author is to pi-esent a compendium of veterinary medicine with special 

 reference to animal industry in America. In Vol. I the subjects treated are general 

 pathology and diseases of the respiratory and circulatory organs, including the lym- 

 phatic system, in all domesticated animals. In Vol. II a discussion is givan of the 

 diseases of the digestive organs, liver, pancreas, and spleen. In Vol. Ill the diseases 

 of the urinary and generative organs, skin, eye, and nervous system are considered. 

 The fourth volume is in preparation and will discuss the subjects of parasites and 

 parasitism. The volumes thus far published contain a discussion of all the important 

 diseases which affect the various domesticated mammals and liirds. 



AGRICULTURAL ENGINEERING. 



Irrigation in the United States, F. H. Newell (New York: T. Y. Crowell ct Co., 

 1902, pp. XIX ^ 417, pis. 62, figs. 94). — This book is one of the Library of Economics 

 and Politics series and is stated to ])e "a somewhat elementary and popular descrip- 

 tion of irrigation and of the devices for obtaining and distributing water, including 

 details of interest to persons who are beginning to give attention to the subject. 

 More space is devoted to the crude l>ut effective home-made contrivances than to 

 the elaborate or expensive machinery purchased from manufacturers, for the success 

 of irrigation depends most largely upon the rough-and-ready ingenuity of the first 

 settlers in a new country in adapting their ways to the environment." It includes 

 a summary of the author's twelve years' study and experience in various fields of 

 irrigation inquiry. 



The book treats of the reclamation of the public lands; precipitation, frosts, and 

 grazing and cultivated lands of the arid region; surface waters and their measure- 

 ment; conveying and dividing stream waters; construction, management, and use of 

 reservt)irs; methods of irrigation; underground waters; pumping water; advantages 

 and rlisad vantages of irrigation; irrigation law; accounts of irrigation in the States 

 and Territories of the arid and semiarid legions; and irrigation in the humid region. 



Irrigation of the Delta of the Colorado, W. AV. C.\mpbell (<S'e/. Amer., 85 

 {1901), p. 3.58). — The areas which it is estimated may be irrigated in this region from 

 the waters of the Colorado River are 150,000 acres in Arizona, 1500,000 acres in Lower 

 California, 500,000 acres in southern California. There are also stated to be 50,000 

 acres in southern California which may be irrigated from artesian wells. 



Hydrography in the United States, H. Gr.weliis {Ztsclir. O'ewimerkuiide, 4 

 (1901), ]>/,. 14S-157). 



Irrigation works in Egypt (Rer. Sri. [Pari-s'], 4. i<er., 17 (1902), Xo. 2. p. 61). — 

 A brief note. 



The regeneration of Egypt. The Assouan dam, A. Kiekfel {Rev. Sci. [Pari.s], 

 4. ■'•■''/•., 17 { U'G.'], Xo. .'/, },p. 268-272). 



Hydrology of Sahara, L.\haciie {Rev. Sci. [/'«m], 4- ser., 17 {1902), Xo. 9, 

 pp. f7^, S73). 



