AGRICULTURAL ENGINEERING. 517 



The report is not a comprehensive treatment of Italian irrigation, but describes 

 only those works and institutions which are thought to contain suggestions of value 

 to American irrigators. The bulletin gives a general description of the Po Valley — 

 water supply, climate, crops, irrigation laws and practice, irrigation works, etc. — and 

 detailed accounts of irrigation under the Naviglio Grande, Villoresi, and Vettabbia 

 canals in Lombardy; and of the water supply, state irrigation works, administration 

 of irrigation works, settlement of water rights, duty and cost of water, structures for 

 measurement and distribution of water, etc., in Piedmont. 



This, which is the riist part of the report, deals with studies of irrigation in Pied- 

 mont and Lombardy west of the canals from the Adda River. A second part will 

 describe the irrigation and drainage works found between the Adda River and the 

 Adriatic Sea, and a third will describe the administration of streams and some of 

 the methods followed by the government in aiding the building of both irrigation 

 and drainage works. A bibliography containing references to 100 of the more 

 important works relating to Italian irrigation is included in the report. 



Memoranda of plans of irrigation investigations ( Utah sin. < 'ire. 2, pp. 23). — 

 The instruction and regulations for a series of irrigation investigations carried on in 

 cooperation with this Department, together with memoranda of plans for the work 

 in 1904, are presented. The instructions give in detail the data to be collected, 

 the method of measuring and applying water, and the manner of taking crop and 

 soil samples. 



Accuracy of stream measurements, E. C. Murphy ( U. S. Geol. Surrey, Water 

 Supply and Trrig. Paper No. 95, pp. 169, pis. 6, Jigs. 59). — "This paper is a revision 

 and enlargement of paper No. 61 [E. S. R., 14, p. 404]. It embodies the results of 

 an extension of the investigations, in the hydraulic laboratory of Cornell University, 

 of the flow of small and moderate sized streams." 



Irrigation and land drainage, W. G. Cox {Agr. Gaz. New South Wales, 15 (1904), 

 No. 8, pp. 723-732, fig. 1). — This is a discussion of the importance of irrigation in New 

 South Wales and of the necessity for drainage in connection with irrigation, as well 

 as of methods and cost of draining awamp lands. 



The use of alkaline and saline waters for irrigation, T. H. Means (Forestry 

 and Irrig., 10 (1904). No. S. pp. 350-354). — A general discussion of the subject. 



Hydrographic manual of the United States Geological Survey, E. Murphy, 

 J. C. Hoyt, and G. B. Hollister ( U. S. Geol. Surrey, Water Supply and Irrig. Paper 

 No. '.i-',. pp. 76, pis. 3, Jigs. 10). — This bulletin " gives instructions for field and office 

 work relating to gauging of streams by the use of current meters." 



Tilling the " tules " of California, A. J. Wells (Amer. Mo. Per. of Reviews, 

 30 {1904), N<>. 170, pp. 312-317, figs. 12). — A general account of the reclamation and 

 culture of the tule lands in the vicinity of the junction of the Sacramento and San 

 Joaquin rivers in California. 



How the Dutch have taken Holland, F. D. Hill (Amer. Mo. Per. of Reviews, 

 30 (1904), No. 176, pp. 318-322, figs. 4). — A general account of the reclamation of 

 land from the sea in Holland and of the proposed drainage of the Zuyder Zee. 



Irrigation on the Lower Durance, G. Carle (Jour. Agr. Prat., u. ser., 8 (1904), 

 No. 39, pp. 402-406) .—The system followed in this region is briefly described. 



Historic highways of America, A. B. Hulbert (Cleveland, <>hi<>: Arthur II. 

 Clark Co., 1904, vols. IS. pp. 231, pis. 5. maps 2; 14, pp. 234, pis. S, maps 2).— These 

 two volumes deal with the great American canals, the first with the Chesapeake and 

 Ohio Canal and the Pennsylvania Canal and the second with the Erie Canal. (For 

 notes on previous volumes see E. S. R., 16, p. 306.) 



