IRRIGATION INVESTIGATIONS. 499 



(9) Methods of constructinj^ and inaiiitjiininj^ dikes for the irriga- 

 tion of rice and in provontin<i' the flooding' of swamp and ovortlowod 

 hinds. 



(iU) Incjuiries rogardin<;-cortaiu classes of t'arni machinery in <^eneral 

 use, with a view to determining,'- what prohh'ms farmers must meet in 

 their use and in what directions studies may be required for their 

 improvement. The rehxtive efficienc}^ of windmills and gas engines in 

 pumping and in supplying power for other kinds of farm work, the 

 prol)lems connected with the use of traction engines in general farm 

 work, and the relative merits of disk and luoldboard plows, are examples 

 of special inquiries in this tield. 



PUBLICATIONS. 

 R. P. Tkele, EfliU)rial Assistant, in charge. 



The irrigation publications for the Hscal year ended June 30, 1903, 

 included 5 Indlctins, a report to the Director of the Ofh'ce, 2 Yearbook 

 articles, and 1 circular, making a total of 9<»1 printed pages. In addi- 

 tion, separates of bulletins previously published were issued, aggregat- 

 ing (581 pages, and reprints of other bulletins, containing 119 pages. 

 This makes a totiil of 1,701 pages of printed matter issued during the 

 year, 901 of which was new matter. The new publications were as 

 follows: 



Bulletin Xo. 124, Report of Irrigation Investigations in Utah. By R. P. Teele, A. P. 

 Stover, A. F. Dorenius, J. D. Stannard, Frank Adams, and (J. L. Swendsen. Pp. 

 336, pis. 19, figs. 2. Price, $1.10. 



This is an exhaustive study of the irrigation laws of Utah from the 

 standpoint of their relation to agricultural development and of the 

 customs and institutions which liave grown up under these laws. The 

 distinctive features of Utah irrigation are the cooperative canal com- 

 panies and their rules for distributing water to their members. The 

 reports contained in this bulletin show very clearly how these com- 

 panies are organized, how they distribute water, and the cost of water 

 to their members. 



Bulletin No. 130. Egyptian Irrigation. By Clarence T. Johnston. Pj). 100, pis. 24, 

 figs. 9. I'rice, 30 cents. 



Mr. Johnston spent the winter of 1901-2 in Kgypt studying the 

 irrigation laws and })ractices of that coimtr}' and inspecting the irri- 

 gation works. This bulletin contains the results of his studies. It 

 gives a descriY)tion of the country, the agricidtural methods in use, 

 and the canals and structures connected therewith, including the great 

 As.suan Dam which was nearing completion at the time of Mr. John- 

 ston's visit. The main features of the system of distributing water 

 are also discussed and the texts of the more important parts of the 

 irrigation laws are given. 



