1918.] CONTENTS. V 



Page. 



Notes on three species of apple leaf -hoppers, LaUirop 858 



Texas aphid noles, Paddock 859 



A simple means of ascertaining if a sterilizing hut is hot enough, Bacot 859 



Annual reports of the Royal Sericultural Station, Padua, Verson et al 859 



Use of phototaxy in selecting larvaj most resLstant to flacherie, Acqua 860 



Gii)sy moth larvie in dissemination of pine blister rust, Gravatt and Posey 860 



The apple ermine moth, Parrott 860 



The imported cabbage worm in Wisconsin, Wilson and Gentner 860 



Nicotin sulphate an effective ovicide for codling moth eggs, Lovett 860 



Some experiments on the adults and eggs of the peach tree borer, Peterson 861 



The striped peach worm, Ingerson 861 



Notes on the strawberry leaf -roller {Ancylis comptana), Webster 862 



Notes on biology of Angoumois grain moth, Sitolroqa cerealella, King 862 



The apple leaf-mining case bearer ( Coleophora volckei n. sp.), Volck 862 



Malaria control. — A report of demonstration studies, Derivaux et al 862 



Relation of kinds and varieties of grain to Hessian fly, McCoUochand Salmon.. 863 



Early spring Syrphidas in California and a new Pipiza, Davidson 863 



Poisoned bait for the onion maggot, Howard 863 



Meigenia Roralis, a parasite of the black alfalfa-leaf beetle, L^caillon 863 



Control 01 the common white grub, Cotton 863 



Studies on tho life history of two Kansas Scarabfeidse, Hayes 864 



Notes on the habits and metamorphosis of Lepidiota frenchi, Jarvis 864 



Insecticide tests with Diabrotica vitlata, Howard 864 



Life history of Ealtica jamaicensis, Cotton 864 



Sweet potato root borer ( Cylas formicarius), Hinds 864 



Weevils which affect Irish potato, sweet potato, and yam, Pierce 864 



The strawberry root weevil, Melander 864 



The agricultural situation for 1918. — IV, Honey. — ^More honey needed 865 



Rearing queen bees in Porto Rico, Van Zwaluwenburg and Vidal 865 



Bee disease control, Carr 865 



On three new parasitic acari. Hirst 865 



Scale feeding habits of a Porto Rican milliped, Rhinocricus arboreiis, Cotton . . . 865 



FOODS— HUMAN NUTRITION. 



Commercial stocks of miscellaneous animal food products in the United States . . 865 



The supply of lard in the United States on August 31, 1917 866 



The supply of canned salmon in the United States on August 31, 1917 866 



Stocks of cereal and vegetable foodstuffs in United States, August 31, 1917 866 



Sugar supply of the United States on August 31, 1917 866 



Commercial stocks of wheat and flour in the United States on August 31, 1917. 867 



Use of wheat-saving cereals. Green, Skinner, and Richards 867 



Hints to housewives 867 



Ninth biennial report of the Food and Drug Department 867 



[Food and drug inspection], Ladd and Johnson _. 867 



Annual report of the dairy and food commissioner of Wisconsin 867 



Digestibility of some nut oils, Holmes 867 



Bacteria in ice cream. — II, Hammer and Goss 868 



Dietary deficiency of cereal foods in "antineuritic vitamin," Voegtlin et al. . . 869 



The origin of creatin. — II, Baumann and Hines 869 



Effect of starvation on catalase content of tissues, Burge and Neill 869 



Effect of thyroid feeding on catalase content of tissues, Burge et al 870 



The role of catalase in acidosis, Burge 870 



ANIMAL PRODUCTION. 



Wintering and fattening beef cattle in North Carolina, Ward et al 870 



The utilization of dry farm crops in beef production, Foster and Smith 872 



Cattle feeding.— XIII, Winter steer feeding, 1916-17, Skinner and King 873 



Digestion of starch by the voung calf, Shaw, Woodward, and Norton 874 



The agricultural situation for 1918.— X, Wool 874 



[Feeding experiments with pigs], Templeton 874 



[Feeding pigs com, velvet beans, and peanuts], Templeton 875 



Influence of ration on intestinal flora of swine, Bushnell and Frey 875 



Winter cycle of egg production in the Rhode Island Red breed, Goodale 876 



Successfiil incubation practices in New Jersey, embryo mortality, Hannas. . . . 876 



