1919] CONTENTS. V 



Pu 



A note on the tracheal air sne In the ruddy duck, Wetnmre 851 



Maggot-Infested birds. Arnold 851 



The wings <»r insects, Comstocb 851 



r rii<> locomotions of surface-feeding caterpillars are not tropisms, Turner 852 



[Economic inserts in Kansas] 



Some Insects affecting vegetables in Trinidad and Tobago, Drtcfa 

 Fumigation of Cattleya orchids with hydrocyanic acid, Sasser and Dletz 



Experiments on cockroach control, Walter 



Collection of Orthoptera made in central Peru, Caudell 



Regarding Diapheromera veliei and Mamomera blatohleyi, Oaudell 



Thysanoptera of Florida, Watson 838 



Additional data on the distribution and food plants of Lygus, Knight _ 858 



An outbreak of the cotton stainer on citrus, Watson 



An extra molt in the nymphal stages of the chinch bug, Yuasa 358 



Loaf burn of the potato and its relation to the potato leaf-hopper, Ball-. 853 



Genera of the Eupterygidae, McAfee 354 



The early stages Of Coryth/UCha pergatldei, Weiss and Diokerson 854 



Life history and stages of Corpthucha parshloji, Weiss and Dickerson 354 



Psyllidse of the vicinity of Washington, D. 0., McAtee 354 



Spraying a commercial orchard for the preen apple bug, Brlttain 354 



Preliminary report on clover aphis and methods for control, Smith 354 



The tobacco aphis, Henry 355 



A new genus and species of aphid, Wilson and Davis 355 



The Coceidre of Cuba, Houser 355 



Note on the life cycle and fertility of the body louse. Hutchinson 355 



Effecl of laundering on lice (Pedieulua corporis) and their eggs, Moore.- 



The Angoumois grain moth. Headlee 3 6 



Formation of the germ band in the i^tx of the holly tortrlx moth, Huie__ 356 

 Importance of malaria to agriculture and studies on malarial soil. Ross) . 3.16 



The economic bearing of hover flies, Miller . 356 



Experimental work with fruit flies. Froggatt 3 6 



Sprinkling sewage filter fly (Psychoid alternate,), Headlee and Beckwith. 



Simple treatment of manure to prevent fly breeding, Carter 



A new muscold genus from the Chirlcahua Mountains, Ariz., Townsend _ 357 



The anthomyid genus Pogonomyia, Aldrich 357 



The biology of Maine species of Alt ha. Woods 



Notes on Chalepus rubra in New Jersey, Nicolay and Weiss 357 



The sweet potato weevil and its control, Chittenden 



The pea sitonid. Keniner 



Beekeeping In Florida, Stirling 



Beekeeping In war time, Herrod-Hempsall 



Beekeeping In British Guiana, De Weever 358 



New Encyrtinse from California parasitic in mealy-bugs, Tlmberlake 359 



An Interesting habit of a wax moth parasite, Graham 



Notes on a new mite attacking valley Cottonwood. O'Gara 



studies on the iguana tick. Amblyomma dissimile, in Panama, Dunn 359 



The biology of Amblyomma dissimile, Bodkin : 



On the life cycle of the fowl cestode, Davainea oesticillus, Ackert 859 



FOOOS — HUMAN NUTRITION. 



Place of milk and vegetables in the diet. Sherman 



Methods employed for cooking vegetables,— I, Dried legumes, Mast 



Wild foods of ("Jreat Britain, where to And and bow to '-o.-k. Camerson__ 



Digestibility Of bread from wheat, oats, barley, etc, SpriggS and Weir 



A study of yeast bread with substitute Hours, Sprague 



"Ropy" bread. Beatlie and Lewis 



Wheat saving recipes, Jensen and Newton 36J 



Milling grain sorghums 



Changes in the food supply and their relation to nutrition. Mendel 

 Commercial stocks of grain and miscellaneous products December I, 19 



Comparative statistics on foodstuffs and fuel for live years 



The home economy handbook. [Pratt] 



Economy in the kitchen, Breazeale 



Feeding the family. Rose 861 



Food supply in families of limited means. Davis, jr 361 



