1020] CONTFA^TS. V 



Page. 



Diseases of orange and otlior citrus plants. .T(tlinst(tn iiml P>runer 44S 



Forest bolaiiy liiml patlmlogy], Hole 448 



Black canlier of chestnut, Tetri 448 



( ijiscrvalitnis (in irununosis of elm, Petri 449 



A Tiiclei»h<iracea^ tm oak, Massa 449 



J'rridcrniiuni itiiii and its transmission from pine to pine, Klebahn 449 



A supposedly parasitic disease of poi)lar, Petri 449 



Transference of nematodes from place to place, Cobb 44!) 



ECONOJriC ZOOLOGY — ENTOMOI.OGY. 



Trapping: on the farm, Dearl>orn 449 



Tlie Mi-ratory Bird Treaty 449 



Tlie writings of the late C. (lordon Hewitt, compiled by Hutchinss 449 



Rp])ort of the division of entomologj', Sherman 449 



[Work with insects and their control in Antif?ua] 450 



Enemies of maize in Uru;ruay 1 450 



Piid< hollworm and cotton stem weevil on Cambodia cotton 450 



[Economic forest insects in Dutch East Indies] 450 



Insect tranniission in plant and animal diseases, Rand and Pierce 450 



Tennites and termitoplules, Warren 450 



The distribution of North American Cicadellidre (Hemip.), Barber 450 



Leaf hopper investigations on Hawaii, Peraberton 450 



Jumping plant lice of PaUeotropics and South Pacific Lslands, Crawford— 450 



Potato spraying experiments on pink and green aphid, Part I, Smith 451 



Sugar-beet nxit-louse control, Hansen 451 



Spraying walnut aphis, Braunton 451 



A synopsis of the Aphididte of California, Swain 452 



Notes on oriental Aphidida^, van der Goot 452 



Cypress bark scale, Herbert 452 



c'occidiie from the island of Sao Thome, de Seabra and Vayssiere 452 



Contributions toward a monograpli of the sucking lice, Ferris 452 



Experiments on the destruction of lice and nits 453 



The Achemon sphinx moth (Pholus adionon- Drurj), Nougaret 453 



The glassliouse tomato moth and its control, Loyd 454 



Control of the grape-berry moth in northern Ohio. Ingerson and IUinner__ 454 



Tlie fight against the pink bollworm in the United States, Hunter 454 



The antimalarial role of domestic cattle, Roubaud 454 



The apple maggot in New York, Herrick 455 



The melon fly : Its control in Hawaii by a parasite from India, Fullaway_ 455 



The bean ladybird, Chittenden and Marsh 455 



Smaller pear borer (Laspci/rcna violcsta Busck), Nashi-Hime-Shinkui 4o6 



On hybrids of linioccra alhofascUtta and B. giffos, Dammerman 456 



Root-bark channeller of citrus ( I)((ilfiufi rifiipcrda Tryou), Tryon 456 



The powder-post beetle and its parasite, Froggatt : 456 



Further experiments with poisoned bait on maize lands, Jack 456 



Poison boll weevils, Ward 456 



Alfalfa weevil and control metliods, W'akeland 457 



The banana weevil iV oh mo polite a s-onlida Chevr.), Tryon 457 



Beekeeping for the Oregon farmer, Lovett 457 



Hymenoptera Parasitica, especially Microfjastcr conncniH, (iatenby 457 



Notes oa certain entozoa of rats and mice, Johnston 457 



FOODS — HUMAN NUTRITION. 



Methods for cooking vegetables, II, Masters and Garbutt 458 



Lupins in human nutrition, Fimaro and Musante 458 



Condensed nuoc-mam, Rose 458 



Formation of ferrous sulphid in eggs during cooking, Tinkler and Soar — 458 



Food poisoning, Dodd 458 



Gennan nutrition. 1914-1919. Ma.son 459 



The chemical isolation of vitamins, Myers and Voegtlin 4.50 



Antiscorbutic properties of fruit juices, Hardin and Robison 460 



Antineuritic proj^erties of orange juice, Byfield et al 460 



The antiscorbutic refpiirements of the monkey, Harden and Zilva 461 



Production iu monkeys of symptoms»ri'sembling pellagra, Chick and Hume. 461 



