1918] CONTnTTTS. VII 



RURAL ENGINEERING. 



Page. 



Irrigation by borders, or sloping checks, Allen 487 



Surface water supply of South Atlantic and Eastern Gulf Basins, 1915 488 



Manual for water supply in villages, Sparro 488 



Bacteria in deep wells, Tanner and Bartow 488 



Factors which influence longevity of Bacillus coli and B. typhosus, Hinds 488 



The viability of colon-aerogenes bacteria in water, Rogers 488 



Organisms isolated from water after treatment with hypochlorite, Smeeton 489 



English incubation test for putrescibility of sewage effluents, Mohlman 489 



Bacteriological study of sewage purification by aeration, Russell and Bartow. . . 490 



Pm-ification of sewage by aeration in activated sludge, Bartow and Mohlman. . 490 



Handbook of clearing and grubbing: Methods and cost, Gillette 490 



Tests of a large-sized reinforced-concrete slab, Gold beck and Fairbank 490 



How the surface of a road affects tractive effort 491 



Charts for the use of road-oil inspectors. Glass 492 



A kerosene carbureter, Menges 492 



A laboratory manual in farm machinery, Wirt 492 



Markets for agricultural imi>lenients in Chile and Peru, von Motz 492 



Heat losses through buildings and building materials, Hawley 492 



Fire prevention and fixe fighting on the farm, Tolley and Yerkes 492 



RURAL ECONOMICS. 



Farm management and farm profits on irrigated land, Connor .'..,. 493 



Organization of the farm business for profit. Dagger and Falconer 493 



International yearbook of agricultm-al legislation 493 



Laws of Maine relating to agriculture 494 



The laws of South Dakota establishing a system of rural credits 494 



Cheaper money for Saskatchewan farmers 494 



Live stock on credit terms to Saskatchewan farmers and cooperative marketing. 494 



Farmers' market bulletin 494 



Suggestions to purchasers of farm lands in New York, Fippin 494 



Economics of agricultural production in South A frica, Lehfeldt 494 



Agi-icultural laborers and rural population in France, de Bernonville 494 



The world's food 494 



The corn trade during the war, Kains- Jackson 494 



The corn and meat trades since the war 494 



Prices and supplies of corn and other produce in England and Wales 495 



Agricultural statistics of Chile 495 



Agricultural statistics of Uganda Protectorate 495 



AGRICULTURAL EDUCATION. 



Departmental organization in agricultural teaching, Blodf,ett 495 



The Bco]je and methods of instruction in rural sociology, Gillette 495 



The value of a technical education to a forest supervisor 495 



Elementary science, Coulter 496 



Productive agriculture, Gehrs 496 



Courses in secondary agriculture for southern schools, Barrows 496 



The farmer and his friends, Tappan 496 



Judging sheep as a subject of instruction in secondary schools, Barrows 496 



A simple course in home economics for rural schools. Gearing et al 497 



MISCELLANEOUS. 



Biennial Report of Connecticut S torrs Station, 1914-15 498 



Thirtieth Annual Report of Vermont Station, 1917 498 



Work of Umatilla project farm in 1915 and 1916, Allen 498 



Monthly bulletin of the Western Washington Substation 498 



Index to General Bulletins 1 to 25, Clees 498 



Index 498 



Two methods of orientation of small objects in paraffin. Nelson 498 



