896 EXPERIMENT STATION RECORD. 



power or steam from some other industry for generation of electricity, 

 and complete and uniform utilization of the electricity from a large cen- 

 tral plant. 



Electric motors are better adapted to plowing than to any other farm 

 operation. They may, however, be applied with advantage to threshing, 

 feed cutting, irrigation, drainage, lighting, etc. 



Experiments have shown that the use of electricity for driving farm 

 machines, especially plows, is technically practicable, but its economy 

 is questionable on a farm of less than 000 acres. 



Electric plows are about as expensive as steam plows, if the electric 

 plant is used for no other purpose, but they possess the advantage of 

 greater lightness, which better fits them for hilly and soft ground. 



An important advantage resulting from the use of motor plows is 

 the improvement of the tilth of the soil and the consequent increase of 

 yield. 



Numerous estimates of the cost of producing and applying electricity 

 under different conditions are given. 



Irrigation near Greeley, Colorado, D. Boyd ( Water Supply and 

 Irrig. Papers, U. S. Geol. Survey, Xo. 9. pp. 90, pis. 21, figs. S). — In this 

 paper no attempt is made to describe the details of the development 

 of agriculture or of the system of water control in this colony, but 

 simply "to present the more prominent facts and those of most interest 

 and value to the citizens of the West who are now following in similar 

 paths and seeking to lay the foundations for broad and lasting systems 

 of water utilization and control by which the rights of all may be 

 determined and protected." The report is prefaced by an introduction 

 compiled from the records of the Geological Survey and from other 

 sources, to illustrate the climatic; and topographic conditions of Cache 

 la Poudre Valley, in which Greeley is situated, and also the limitations 

 of water supply, and discusses the following subjects: Settlement in 

 Cache la Poudre Valley, canal and reservoir systems, conservation of 

 water supply, legislative and judicial control of water, construction and 

 operation of canals, agricultural practice, and underground waters. 



Underground -waters of south-western Kansas, E. Haworth 

 (Water Supply and Irrig. Papers. U. S. Geol. .Survey, Xo. 6, pp. 65, pis. 

 12, figs. 2). — This is a summary of results of fieldwork carried on dur- 

 ing the summer of 1800 with a view to obtaining "detailed information 

 concerning the amount and quality of the underground waters in order 

 to throw light upon the problems connected with the utilization of these 

 in the development of agriculture upon the Great Plains." 



"The area discussed in this report is located in southwestern Kansas and covers 1 

 degree each of latitude and longitude. It is hounded on the east hy the one hun- 

 dredth meridian west of Greenwich, on the west hy the one hundred and first 

 meridian, on the south by the thirty-seveuth parallel, and on the north hy the thirty- 

 eighth. . . . [The author concludes] that the amount of ground water under the 

 area here descrihed is sufficient to meet any demands that will likely he made upon 

 it, even should industries spring up in the West which will use inauy times as much 



