1917] CONTENTS. V 



Page. 



Virulence of different strains of Cladosporium cucumerinum, Gilbert 840 



A nematode disease of the dasheen and its control by hot water, Byars 841 



A bacterial stem and leaf disease of lettuce, Brown 841 



Studies upon the anthracnose of the onion, Walker 841 



Pink root, a new root disease of onions in Texas, Taubenhaus and Johnson 841 



Black spot of pepper, Melchers and Dale 841 



Notes on curly dwarf symptoms on Irish potatoes, Durrcll 841 



Notes on mosaic symptoms of Irish potatoes, Melhus 842 



Frost necrosis of potato tubers, Jones and Bailey 842 



A bacterial blight of soy bean, Johnson and Coerper 842 



Further note ou a parasitic saccharomycete of the tomato, Schneider 842 



Host limitations of Septoria lycopersici, Norton 842 



Note on Coniotheciimi, especially C. chomatosporum, van der Bijl 842 



Control of peach bacterial spot in southern orchards, Roberts 842 



Black currant eelworm, Taylor 843 



Sulphuring Concord grapes to prevent mildew, Gladwin and Reddick 843 



The gencnation of aldehydes by Fusarium cubcnse, Lathrop 843 



Citrus canker investigations at the Florida Tropical Laboratory, Jehle 843 



Sour rot of lemon in California, Smith 843 



Two new camphor diseases in Texas, Taubenhaus 843 



Disea^ses of cinchona. Rant 844 



A disease of pecan catkins, Higgins 844 



Phytophthora on Vinca rosea, Dastur 844 



Notes on some species of Coleosporium, Hedgcock and Hunt 844 



The secial stage of Coleosporium elephantopodis, Hedgcock and Long 844 



An alternate form for Coleosporium hellanthi, Hedgcock and Hunt 844 



Some new hosts for Coleosporium inconspicuum, Hedgcock and Hunt 844 



The Peridermiiun belonging to Coleosporium ipomcex, Hedgcock and Hunt. . . 845 



Some new hosts for Coleosporium solidaginis, Hedgcock and Hunt 845 



A Peridermium belonging to Coleosporium terebinthinacese, Hedgcock and Hunt . 845 



Notes on Cronartium comptoniie, III, Spaulding 845 



Does Cronartium ribicola winter on the currant? McCubbin 845 



EATidence of the overwintering of Cronartium ribicola, Spaulding 846 



The pine blister, Paul ^ - 846 



The control of white-pine blister rust in small areas, Rankin 846 



Some new or little known hosts for wood-destroying fungi, Rhoads 846 



ECONOMIC ZOOLOGY — ENTOMOLOGY. 



A new subspecies of meadow mouse from Wyoming, Bailey 846 



Diagnosis of a new laniine family of Passeriformes, Oberholser 846 



Description of a new Sialia from Mexico, Oberholser 846 



Friends of oiu" forests, Henshaw 846 



Report of the entomologist of Arizona for 1916, Morrill 846 



Annual report of the State entomologist for 1915, Worsham 847 



Report of the di\'ision of entomology, 1916, Ehrhorn 847 



Report of the economic biologist, Bodkin 847 



Obsen^ations on some insects attacking rice, Supino 847 



Wild vegetation as a source of curley-top infection, Boncquet and Stahl 847 



Meadow and pasture insects. — Practical methods of control, Osbom 847 



Insects that factor in the grading of apples, Pan'ott 847 



Sprajdng for insects affecting orchards in Nova Scotia, Sanders and Brittain. . . 848 



Insects injuring stored food products in Connecticut, Britton 848 



The carriage of disease by insects, Howard 848 



Key for identification of para-sites in human feces, Martin and McKittrick .... 848 



Volatility of organic compounds as an index of toxicity to insects, Moore 848 



Lead arsenates, stone fi'uits, and the weather. Gray 848 



Locust control in various countries, Trinchieri 848 



Report on control work with the locust in Uruguay, Sundberg et al 849 



Experiments in locust control in Argentina, Ki'aus 849 



Summary of locust work for the third quarter, 1916, South 849 



A new Sericothrips from Africa, Hood 849 



A new species of Corythuca from the Northwest, Gibson 849 



The tomato and laurel psyllids, Essig 849 



The pink and green potato plant louse. — A new pest for Ohio, Houser 849 



Borne sensory structures in the Aphididse, Baker 850 



Eastern aphids, new or little known, I, Patch 850 



