1096 EXPERIMENT STATION RECORD. 



macadam, gravel, and earth roads is briefly explained, and the more 

 important results of the experiments and observations reported are 

 summed up as follows: 



"(1) Country towns should do more surfacing, using the best materials available. 



"(2) Sand should be removed from the gravel employed, and all gravel should be 

 as uniform as possible. 



"(3) Labor-saving machinery should be utilized to reduce expense. 



"(4) Combinations of natural materials should be tried when the conditions are 

 favorable. ' ' 



Cultivation and irrigation in the ■western district (Ne^v South. Wales) , C. H. 

 Gorman {Agr. Gaz. New South Wales, 11 {1900), No. 8, pp. 633-634). 



Irrigation of oranges in Syria, M. Rixgelmann {Jour. Agr. Prat., 1901, I, No. 3, 

 pp. 91-93, figs. 5). — The use of various kinds of pumps for raising the underground 

 water is discussed. 



Treatise on the la-w of irrigation, covering all the States and Territories, 

 with an appendix of statutory law, J. li. Long {St. Paul: Keeje- Davidson Laiv 

 Book Co., 1901, pp. 5J6). 



Ingenious water wheels, W . Fawcett {Sci. Amer., 84 {1901), No. 7, p. 104, figs. 

 5).- — Descriptions are given of a number of devices for lifting water by means of 

 water wheels and windmills in Nebraska. 



Daily river stages at river gage stations on the principal rivers of the 

 United States ( U. S. Dept. Agr., Weather Bureau Doc. 227, pp. 5J).— This is Part VI 

 of a series of reports on river gage readings begun by the Signal Service in 1858 and 

 continued by the Weather Bureau. It covers the years 1896, 1897, 1898 and 1899. 



"River stations are maintained by the AVeather Bureau for the purpose of making 

 forecasts of river stages in the interest of navigation, and of issuing flood warnings in 

 cases of dangerous rises. Daily gage readings are made at stations located on the 

 various watersheds, and are collected by telegraph at 32 centers. . . . 



" The tabulated gage readings are preceded by a statement which includes the loca- 

 tions of stations, descriptions of gages and bench marks, heights of danger lines, low- 

 water, and flood marks, and other data, for the various river stations whose gage read- 

 ings are included in the tables. The gage readings are arranged by river systems, and 

 are preceded by two indexes— one alphabetical, with respect to the stations, and the 

 second following the arrangement of the text." 



The hydrography of Allegany County, F. H. Newell {Maryland Geological 

 Survey, Allegany County. Baltimore: JoJins Hopkins Press, 1900, pp. 233-251, pis. 5, 

 fig. 1). — The hydrographic features of the county are briefly described and the results 

 of gagings of the Potomac River at Cumberland during 1895, 1896, and 1897 are 

 reported. Estimates of the monthly discharge of the river at that point are given, 

 with discussions of the pollution of the Potomac and its tributaries, and the utilization 

 of the water for municipal supjjlies and manufacturing purposes. 



On the influence of plant cover on the flow of streams, E. "Wollny {Meteor. 

 Ztschr. [ Vienna'], 17 {1900), No. 2, pp. 491-504). 



Second Biennial Report of the State Engineer to the Governor of Utah, 

 1899-1900, K. ('. Gemmell (iip. 100, jih. 7, ntap 2).— This report contains descrip- 

 tions of plans of State irrigation works, a record of stream measurements, an account 

 of irrigation investigations made in cooperation with this Office,^ a brief discussion of 

 the State irrigation laws, the provisions of a proposed law relating to irrigation and 

 water rights, and a table showing the discharge over Cippoletti trapezoidal weirs of 

 different dimensions. 



Trials of agricultural machinery at Ultuna: Automatic drinking devices, 

 G. TiMBERG {Landtmannen, 11 {1900), No. 34, pp. 549-550). 



HI. S. Dept. Agr., Office of Experiment Stations Bui. 86, p. 197 (E. S. R., 12, p. 895). 



