Vin CONTENTS. [Vol.35 



Page. 



The purification of water by aluminum sulphate, Bado and Bemaola 388 



The filtering action of soil on water containing colloids, Sack 388 



Stream pollution and sewage disposal in Illinois, Sherman 389 



Report of Oregon State Highway Commission for 1915, Cantine 389 



Road maintenance in the several States 389 



Maintenance of Indiana highways, Martin 389 



Economics of highway engineering, Hewes 389 



Construction field books for bituminous macadam highways, Crawford 389 



What the highway engineer should know about bituminous materials, Hubbard . 390 



Road and concrete materials, Mattimore 390 



Revised practice on road building 390 



Useful feet-miles conversion table for highway engineers 390 



An imusual application of the rattler test for pa\dng bricks, Roman 390 



Drainage and preparation of subgrades, Huber 390 



Reinforced concrete construction. — Bridges and culverts, Hool and Thiessen . . 390 



How the Forest Service bridges the more remote stream crossings 391 



Keeping the engine in good running order, Hull 391 



[Repair of gas engines], Hobart 391 



Directory and specifications of gasoline and oil farm tractors 391 



Directory and specifications of plows for tractor use 391 



Development and efficient utilization of motor plows, Wolff 391 



How to plow a field with a tractor, Olney 391 



Lighting farm buildings, Mowry 391 



A simple ice precooling plant, Pennington 391 



EtJRAL ECONOmCS. 



PBychic causes of rural migration. Groves 391 



Suggestion and city drift. Groves 392 



Government aid and direction in land settlement. Mead 392 



Russian land reform, Ely 392 



A system of niral credits adapted to federal reclamation projects, Sears 392 



Farmers' need for productive credits cared for by present facilities, Goebel 392 



Management of sandy-land farms in Indiana and Michigan, Drake 392 



Farm management for boll weevil conditions, Fain 393 



Terminal market problems, Boyle 393 



Patronage dividends in cooperative grain companies, Humphrey and Kerr 393 



Monthly crop report 393 



Statistics of the production of cereals and legumes 393 



Proceedings of the conference relative to the marketing of live stock 393 



Statistical information relating to cotton, grain, etc., 1915 394 



Resources of Nebraska 394 



AGEICULTUEAL EDUCATION. 



Agricultural education, Monahan and Lane 394 



Agricultural and mechanical colleges 394 



Home economics, Galvin and Lyford 394 



Education for the home, Andrews 394 



Education for child nurture and home making outside of schools, Schooff 394 



A rural school experiment, Rittenberg 395 



Elementary agricultural instruction 395 



Farm and home management schools and agricultural housekeeping schools 395 



Report of the department of agriculture of Sweden, 1913 395 



Women's work in agriculture in peace and war 395 



[Animal husbandry extension course for boys' and girls' clubs], Norcross 396 



Arithmetic problems based upon agricultural club work 396 



MISCELLANEOUS. 



Twenty-eighth Annual Report of Louisiana Stations, 1915, Dodson 396 



Twenty-third Annual Report of Minnesota Station, 1915 396 



Monthly bulletin of the Western Washington Substation 396 



