CONTENTS. V 



Page. 



Observations on diseases of agricultural crops, Raon 550 



New Species of Uredinese, VII, Arthur 550 



Cultures as a means for a better differentiation of the systematic position of cer- 

 tain Hyphomycetes, Appel and Wollenweber 550 



On the biology of Sclerospora, a parasite of the Gramineae, Peglion 550 



The susceptibility of certain cereals to smut, Klinck 550 



Behavior of smut spores in the bodies of animals and in manure, Honcamp et al . . 550 



The enemies of oats, Brocq-Rousseu and Gain 551 



' ' Take-all " (OphioboJus graminis), Richardson 551 



The late blight of celery, Rogers 551 



A bacterial disease of the Irish potato, Pethybridge and Murphy 552 



Some observations on the leaf-roll disease of the potato, Hedlund 552 



A biochemical study of the leaf-roll disease of the potato, I, Doby 552 



The leaf-roll disease of the potato, Kock and Kornauth 552 



Potato spraying experiments, 1910, Turner 552 



Tests of summer sprays on apples and peaches in 1910, Clinton and Britton . . . 553 



Report on a disease in the Taurian limes at Antony, Fisher 553 



Studies on gummosis, Griiss and Sorauer 554 



The diseases of the banana in Central America and Surinam, Labroy 554 



Studies on the biology of Gymnosporangium juniperinum , Fischer 554 



The fungus root tubercles of Ceanothus americanus, Elseagnus argentea, and 



Mynca cerifera, Arzberger 554 



Botrytis as a parasite upon chrysanthemums and poinsettias, Spaulding 555 



Limewater Bordeaux for spraying, Mc Alpine 555 



ECONOMIC ZOOLOGY — ENTOMOLOGY. 



African game trails, Roosevelt 555 



State of New York forest, fish, and game law, 1910 555 



The mammals of West Virginia, Brooks 555 



The A. O. U. check-hst of North American birds 555 



A. 0. U. abridged check-list of North American birds, 1910 556 



Birds of South Carolina, Wayne 556 



Annotated list of the birds of Costa Rica, including Cocos Island, Carriker, jr . . 556 



Catalogue of a collection of birds from Costa Rica, Ferry 556 



Annual report of the State ornithologist for the year 1909 556 



An introduction to vertebrate embryology, Reese 556 



Plague in England 556 



The flagellate order Binucleata, Hartmann and Jollos 557 



Publications of the Bureau of Biological Survey 557 



[Report of scientific work in entomology during 1906], Strand et al 557 



Insects of the year 1910 in Iowa, Webster 557 



Second annual report of the State entomologist of Indiana, Douglass 557 



[Circulars on insect pests in Nebraska], Smith et al 557 



The control of insect pests, Slingerland, Herrick, and Crosby 557 



Fortieth annual report of the Entomological Society of Ontario 557 



Injurious insects of Ste. Anne's, season of 1909, Swaine 558 



Insects which damage saltbush, Froggatt 558 



Some forest insects in the season of 1909, Fyles 558 



Observations on Termes gestroi and methods against its ravages, Pratt 558 



Fourth report of committee of control of South African Central Locust Bureau . . 558 



A synopsis of the Orthoptera of western Europe, Burr 558 



The orchid thrips : Anaphothrips orchidaceus, Bagnall 558 



The mosquito blight of tea, Antram 558 



Mosquito blight, Antram 559 



Aphididae of southern California, IV, Essig 559 



Spraying for the citrus mealy bug, Essig 559 



The natural enemies of the citrus mealy bug, II, Essig 559 



The wild cochineal insect with reference to its action on prickly pear, Tryon. . 559 



Aleurochiton aceris, its host relations, etc., Wolff 559 



Notes on California Coccidse, V, Essig 559 



Notes on silkworm rearing in the Punjab 559 



The silk industry of Persia, Lafont and Rabino 559 



Tricholyga sorbillans in Cochin China, Broquet and Villeneuve 559 



The silkworm moth " rouge ' ' in Cochin China, Broquet 559 



List of Sphingidse of America north of Mexico, Barnes and McDuuuough 559 



