1919] CONTENTS. VTI 



Page. 



Notes concerning the concentration of antitoxic sera, Sordelli 874 



The production of antiserum for agglutination tests, Reynolds and Hill — 875 



Phenolut, a colloidal cresol solution as a disinfectant, Schiirmann 875 



Anaplasma marginale, Di Douiizio 875 



The antigen of Bacillus anthraeis. Warden and Connell 875 



Australian epidemics of an acute polioencephalomyelitis, Cleland et al — 876 



Glycerinated rinderpest vaccine, Kakizaki 876 



Report of bacteriological investigation of tetanus, Tulloch 876 



The growth of Bacillus tetani in the presence of tuberculin, Marino 877 



Methods of detecting tuberculosis in cattle, Lintner 878 



Accredited herds, Torrance 878 



Bovine " aphticvlle." B6del 878 



C'attle fever ticks and methods of eradication, Ellenberger and Chapin__ 878 



Epizootic caused by trypanosomes in French Guiana, Leger and Vienne — 878 



liife history of the luiigworm, Dictyocaulus filaria, in sheep, Guberlet— 878 



Relative potency of tail and carotid bled antihog cholera serum, Cahill__ 879 



The present status of hug cholera control, Eichhorn 879 



An estimate of the number of cysts in a case of pork measles, Hall 879 



Horse sickness in the Belgian Kongo, Van Saceghem 879 



Joint-ill and treatment with serum from the blood of the mother, Mann__ 879 



The treatment of sarcoptic mange in the horse, van den Eeckhout 880 



Bacillary white diarrhea of young chicks, VII, Rettger et al 880 



The chicken pox, roup, and canker problem in New Jersey, Thompson 881 



The life history of the chicken cestode, Hijmenolepis carioca, Guberlet— 881 



On the life history of Davaimea tetragona, a fowl tapeworm, Ackert 881 



RUEAL ENC.INEERING. 



Geology and ground waters of San Diego County, Oal., Ellis and Lee 881 



Surface water supply of Hawaii 883 



Surface vs^ater supply of the lower Mississippi River Basin, 1917 883 



Departures in canal design and location effect saving. Bryan 883 



Why some irrigation canals and reservoirs leak, Davis 883 



AlgiB growths increase value of n in Kutter's formula, Taylor 883 



Tlie theory of underdrainage, Schlick 883 



Recommendations for farm drainage, Schlick 884 



Limestone rock asphalt produces good mortar, Nash 884 



Saturation of concrete reduces strength and elasticity, Lagaard 884 



Compressing concrete increases its strength, McKibben — _ 884 



Strength requirements for manilla rope 884 



Effect of artificial light on plants, Hayden and Steinmetz 885 



Agricultural tractors, Chorlton 885 



The principles of the wheeled farm tractor, Hewitt 886 



Controlled tests of tractor labor, Rabate 887 



Traction on bad roads or land, Legros 887 



Test of a disk pulverizer, Clarou 887 



Tests of mechanical cultivating apparatus, Ferrouillat 888 



The differentiation of lactose-fermenting bacilli. Wood 888 



Deosygenating effect of effluent from Miles acid process, Molilmau 888 



KURAL ECONOMICS. 



Some after-the-war problems in agriculture. Warren 888 



Economic questions, Costa 889 



The appeal of the land, Ricard 889 



The improvement of the Rhone and agriculture, Bernard 889 



Give the land to the soldiers, Buron 889 



The after-war settlement and employment of ex-service men. Haggard — 889 



Employment and natural resources, Mackaye 889 



The farm labor outlook for 1919, Christie 889 



The work of the agricultural wages board in 1918, Ashby 890 



American negro slavery, Phillips 890 



Child caring work in rural communities, Curry 890 



Rural population, Goldenweiser 890 



On absenteeism, de la Rosa 890 



Survey of development of Serbhin (Southern Slav) Nation, Diourltch 890 



