VIII CONTENTS. [Vol. ?.- 



Page. 



Sjyirochasta icterohxmorrhagise in American wild rats, Noguchi 577 



Effects of radiation on development of Trichuiella spiralis, Tyzzer and lIon« ij . . . 578 



Oil of Chenopodium and chloroform aa anthelmintics, Hall and Foster 578 



Anaphylatoxin and anaphylaxis 578 



A study of five membera of the septicemia hemorrhagica group, Besemer 583 



Virulence of apparently sound muscle and glands in tuberculosis, Chausse 583 



Eupatorium ageratoides, the cause of trembles, Curtis and Wolf 583 



The control and prevention of infectious diseases of cattle, Schroeder 583 



Bacteriotherapeutic treatment of ulcerous Ijinphangitis in the horse, Truchv. . 583 



Salvarsan in the treatment of canine distemper, Rrocher 584 



Occunence of a pseudoparasitic mite, Ilirst 584 



Chicken pox in poultry*. — Preventive suggestions, Upton 584 



RURAL ENGINEERING. 



A textbook of practical hydraulics. Park 584 



Beport of the State water commission of California, 1917 585 



Keport of the water conservation and irrigation commipsion for 191G 585 



Administi-ation report, irrigation department, Punjab, 1915-16 585 



Surface water supply of North Atlantic slope drainage basins, 1915 585 



Surface water supply of Ohio lliver Basin, 1915 585 



Centrifugal pumjjs and suction dredgers, Sargt^'ant 585 



Some costs of maintenance oi motor-driven deep-well pumps, Enger 585 



Unlinc-d earth reservoirs for pumping plants 585 



Pumping for irrigation on the farm. Fuller 585 



Divisors (for the measurement of irrigation water). Cone 586 



The composition of irrigation waters in upper Italv, Menozzi and De Vecchi . . 586 



Economical irrigation of alfalfa in Sacramento Valley, Beckett and Kobfrtson . 586 



Irrigation and drainage, Kislcr and Werj' 587 



Drainage of irrigatfd farms, Hart 587 



Standard specifications for drain tile 587 



The quality of water and confirmatory tests for Bacillus coli, Wolman 587 



Ultra- \'iolet rays in the purification of drinking water, Spencer 588 



Sterilization by liquid chlorin and h>-pochlorite of lime, Dutton 588 



The disposal of wastes from the dairy industrj-, Kimberly 588 



Sewage disi)osal on the farm, Warren 589 



Modem road construction, Byrne 590 



Good roads yearbook, 1917 590 



Report of the State higliway commission of Minnesota, 1915-16 590 



Wisconsin highway commission, second biennial report 590 



The Highway Law [of New York] 590 



Automobile registration, licensee, and revenues in tlie United States, 1916. . . . 590 



A treatise on concrete, plain and reinforced, Taylor and Thompson 590 



Extracting alcohol from garbage would conserve grain and potatoes 590 



Agricultural practice, Lougher 591 



The necessity of meclianical cultivation of soil. Heron 591 



Public testa of motor cultivation, Sourisseau 591 



Homemade silos, Uillman 591 



How to build the woo<len-hoop Bilo, Blasingame 591 



The Tenessee wood-hoop eilo. — How to build it, Hutton 591 



A dairy farm plant, Charlton 591 



Cooling tiinks and milk houses aa factors in cream improvement, Frandsen 591 



Wl\y hot water pipes in the household burst more freqiiently, Brown and Noll . 592 



Community samtation 592 



RURAL ECONOMICS. 



Meeting the farmer halfwav, Vrooman 592 



The Nonpartisan Ivcague, tlussell 592 



Rural surveys, Thompson 592 



The results of some rural social surveys in Iowa, Von Tungeln 592 



The mind of the farmer, Groves .' ."' 592 



The development of mral leadership, Fiske . . '. 563 



The consolidated schixil as a community center, Cook 593 



Social control: Rural religion, Gill 593 



Countrjside and Nation, Vincent 593 



Country versus city, Wilson 593 



