AGRICULTURAL ENGINEERING. 397 



from the cow, and removed from the buildinis. In the snmmer time an electric fan 

 is nsed to cool the milk. 



"The feed room is provided . . . with scales and the necessary apparatus. . . . 



"There are 3 silos, rectangular in form, with rounded corners, 10 by 18 ft. and 24 

 ft. high. Their combined capacity is between 250 and 300 tons. The first 10 ft. 

 below the ground is constructed of brick and cement work. Above that point they 

 are built of wood and ))ainted with coal tar. . . . 



"On the ground floor [of the barn] ample space is provided for storage. This part 

 of the 1)arn is arranged so that tlie teams can drive right through and dispose of their 

 loads. ... A tool room is conveniently located in one corner, and contiguous to 

 this is a storage box for sawdust, which is used for bedding and is carried down to 

 the stable by means of a chute. 



"A large experimental seed room is on this floor, which contains the machinery for 

 threshing the grains from the experimental plats, and also space for storing and sort- 

 ing the same until such times as they may be needed for use. A loft is built above 

 this room so that in case of bad weather the grains harvested from the plats can be 

 drawn in and housed here until threshed. On this floor is located the cutting and 

 grinding machinery, the thresher, and the motor for supplying power. The motor 

 is so placed as to run the grinding and cutting machinery from the same position. 

 The other machinery is driven by means of shafting." 



Irrigation {Tradesman, 44 {1900) , No. 2, p. 6^).— This article calls attention to the 

 growing importance of irrigation in the humid region and the need of the enactment 

 of proper laws for the control of the public water supply in the humid as well as in 

 the arid region. 



The conquest of arid America, W. E. Smythe {New York and London: Harper 

 ct Bros., 1900, pp. XVI^.IX, ])l.^. 6, maps S). — This book, by the editor of Irrigation 

 Age, discusses the history, development, and present status of irrigation in the arid 

 region of the Unitetl States from the economic standpoint, and is based upon mater- 

 ials "gathered by ten years of life, work, and study in various parts of the West." 

 The first part of the book deals in a general way with the extent, characteristics, and 

 possibilities under irrigation of the arid region; the second discusses the social and 

 industrial development of the Mormon commonwealth in Utah, the Greeley Colony 

 in Colorado, Southern California, and the irrigated portion of the Great Plains; the 

 third discusses in some detail irrigation development in the several States of the arid 

 region; the fourth treats of such economic questions as the surplus people and the 

 means of colonizing them, and colony plans and institutions — their administration 

 and adaptation to changing conditions. A brief note on methods of irrigation is given 

 as an appendix. 



The growth of irrigation in America, E. Mead {Irrig. Age, 14 (1900), No. 11, 

 jijj. S76-38.5). 



Irrigation in Idaho, W. Fawcett {Set. Amer., 8.3 {1900), No. 10, p. 149, figs. 4). 



Agriculture and irrigation in the Rio Grande Valley, C. W. Kindkick {Sci. 

 Anier. Sup., 49 {1900), No. 1275, p. 20440).— N brief note. 



Water supply and irrigation in Porto Rico, G. E. ^Iitchell {Irrig. Age, 14 

 (1.000), No. 10, jip. S40, ,347). —A brief note. 



Irrigation methods in China, G. E. Mitchell {Irrig. Age, 14 {1900), No. 11. pp. 

 380, .387). 



Australian irrigation farms {Sci. Amer. Sup., 50 {1900), No. 1283, pp. 20561, 

 20562). — A description of government work in irrigation V)y artesian wells in New 

 South Wales. 



Water measurement and manipulation in Colorado, H. A. Crafts {Sci. Amer., 

 83 {1900), No. 6, p. 85, Jigs. 3). — A description of methods and results of irrigation in 

 the State. 



