VIII CONTENTS. [Vol, 35 



RURAL ENGINEERING. 



Page. 



Fourteenth annual report of the Eeclamation Service, 1914-15 284 



Classification of expenditures for irrigation work, Newell 284 



Irrigation districts in California, 1887-1915, Adams 284 



Water resources of Illinois, Horton 284 



Report on Pit River basin, Hopson and Peterson 285 



Silver Lake project: Irrigation and drainage, WTiistler and Lewis 285 



Irrigation experiments, Kelkar 285 



Venturi meter developed for accurate measurement of irriagtion water, Wood.. 286 



Swamp land drainage with special reference to Minnesota, Palmer 286 



Land bedding as a method of drainage in the Gulf coast region of Texas, Gruss. . 286 



Tile drainage by day labor and by the rod 286 



Experiments with automatic water finder in trap region of western India, Mann . 286 



Pollution and sanitary conditions of the Potomac watershed, Gumming et al. . 286 



Alnayses of waters, Brunnich 287 



Results of first year's experiments with small sewage treatment plants 287 



Sterilization and utilization of polluted water in the field, Holland 288 



Dams and weirs, Bligh 288 



Good roads of Monroe County, New York, 1915, McClintock 288 



Fourteenth report of State board of public roads of Rhode Island 288 



Surface oiling of earth roads, Piepmeier 288 



Popular handbook for cement and concrete users, Lewis and Chandler 289 



Concrete on the farm and in the shop, Campbell 289 



Reinforced-concrete slabs under concentrated loading, Goldbeck and Smith 290 



The action of Portland-cement mortar in different salt solutions, Rodt 291 



Some tests on hydrated lime addition to concrete for road work. Ash ton 291 



Experiments on wire rope, Rudeloff 292 



Hauling by animal and mechanical power, AclailUes 292 



An economic study of the farm tractor in the corn laelt, Yerkes and Church 292 



The economics of the farm tractor, Wiggins 293 



The proper bearings for farm tractor uses, Eason 293 



Indigenous implements of the Bombay Presidency, Kelkar 293 



directory and specifications of plows for tractor use 294 



Proper use of rams for farm water supplies, Kirchoffer 294 



Concrete silos, Hanson 294 



RURAL ECONOMICS. 



The agricultural element in the population, Merritt 294 



Information for prospective settlers in Alaska, Georgeson 295 



Statistics of the food supply in Germany, Woodbury 295 



Employment on land in England and Wales of discharged sailors and soldiers. . 296 



The use of agricultural motors and machinery, Gorria 296 



A farm management demonstration on 161 Chautauqua County farms, Rogers. 296 



Marketing and farm credits 296 



Farmers' market bulletin 296 



Live stock sliipping associations 296 



A system of accounts for primary grain elevators, Humphrey and Kerr 296 



Agricultural statistics of Saxony, Wurzbiurger 297 



AGRICULTURAL EDUCATION. 



Proceedings of Association of American Agricultural Colleges, edited by Hills. . 297 



The progress of productive pedagogy, Rubinow 298 



The home project as the center v. the home project, Selvig 298 



Problems in farm woodwork, Blackburn 298 



Oliio Agricultural Day _ 



MISCELLANEOUS. 



Report of the station on work under the local experiment law, 1915, Duggar 299 



Abstracts of papers not included in bulletins, finances, meteorology, index 299 



Reports of the Dickinson, North Dakota, Substation, 1911 and 1912 299 



Sixth Annual Report of the Dickinson, North Dakota, Substation, 1913. . . , . . 299 



Report of the Hood River, Oregon, Branch Experiment Station, 1913-14 299 



Report of the Umatilla, Oregon, Branch Experiment Station, 1914, Allen 299 



Twonty-eigth Annual Report of Rhode Island Station, 1915 299 



Index to Farmers' Bulletins Nos. 1-500, Greathouse 299 



