IV CONTENTS. [Vol. 36 



Page. 



Potato spraying experiments, third report, Clinton 49 



A new species of Melanconium parasitic on the tomato, Tisdale 49 



Infection and resistance studies of Phytophthora infestans on tomato, Melhus. . . 49 



Second progress report on disease resistance in tobacco, Johnson 50 



Disinfection to overcome the root rot ( Thielavia hasicola) , Bamet 50 



Fire blight investigations, Gossard and Walton 50 



Longevity of Bacillus amylovorus, Hotson 50 



Arsenate of lead as a fungicide for apple scab, Morse 50 



Irrigation and bitter pit, Brooks and Fisher 50 



Blight-resistant roots — the first step toward pear blight control, Wisker 51 



Fiuther studies on plum wilt, Higgins 51 



Summer sprays against American gooseberry mildew. Barker and Lees 51 



t Fungus diseases of the cranberry], Franklin 51 



eradication on a large scale, Nelson 52 



Diseases of plants caused by nematodes, Clinton 52 



Cutting out chestnut blighted timber, Stoddard and Moss 52 



A Glceosporium on horse-chestnut shoots, Adams 52 



Leaf fall of conifers. Neger and Fuchs 52 



Tip bum in white pine, Bm-ns 52 



Eradication of Cronartium ribicola from European pine plantings, Rankin 53 



ENTOMOLOGY. 



[Report of the] department of entomology, Doten _ 53 



An attempt to redefine host relationships in entomophagous insects, Smith 53 



Sprays and spraying. Paddock 53 



Cost of dusting and spraying a New York apple orchard, Crosby 53 



[Work with cranberry insects in 1915], Franklin 54 



Gonepteryx rhamni and Castrda iherapon in New Jersey, Weiss 54 



Grasshopper control, Merrill 55 



Notes on Anasa andredi, an enemy of cuciubits, Jones 55 



Triphkps insidiosus as the probable transmitter of corn-ear rot, Hyslop 55 



Some unpublished notes on Pemphigus betas, Maxson 55 



Dispersion of scale insects by the wind, Quayle 55 



Reducing the cost of commercial spraying, Woglum 55 



The white-marked tussock moth (Henierocampa leucostiqma), Yingling 55 



The New Mexico range caterpillar and its control, Wildermuth and Caffrey 55 



The small pink corn worm (Batrachedra rileyi) in Mississippi, Hamed 56 



Control of the variegated cutworm in Ventura County, California, Bensel 56 



A coccid-feeding moth (Blastobasis) Holcocera iceryxella, Essig 56 



Additional notes on use of dust sprays against corn-ear worm, McColloch 56 



Bucculatri.t thurberiella, a pest of cotton in the Imperial Valley, McGregor 56 



Economic Syrphidse in California, Da\-idson 56 



Dispersion of Musca domeslica under city conditions in Montana, Parker 56 



Some observations on the breeding habits of the common house fly, Evans 57 



Sarcophagidse of New England: Genus Sarcophaga, Parker 57 



Notes on Pegomya hyoscyami, Cory 57 



The colimibine leaf miner, Cory 57 



Injury to peanuts by the twelve-spotted cucumber beetle, Fink 57 



Lachnostema larvae as a poasible food supply, Howard _. 57 



Note on predacious habits of Dineutes toward Anopheles larvae, Derivaux 57 



The eggplant tortoise beetle, Jones 57 



The fruit-tree leaf Syneta,, spraying data, and biological notes, Moznette 58 



Reflex "bleedinfr" of the coccinellid beetle, Epilachna borealis, Mclndoo 58 



Notes on the habits of a dangerous genus of weevils, Pierce 58 



Sporotrichum glohulifcrum, a natural enemy of the alfalfa weevil, Rockwood — 58 



Report from the division of bees for 1915, Sladen et al 58 



Detection of arsenic in bees, Holland 59 



Professor Gossard 's theory on fire bUght transmission, Phillips 59 



The chrysanthemum gall fly, Diarthronomyia hypogxa, Essig 59 



A new species of Isosoma attacking wheat in Utahj Doane ^ 59 



Descriptions of and obsen,'ationa on some chalcidoid Hymenoptera, Girault. . . 60 



An egg parasite of the army worm {Ileliophila unipuncta), Flint 60 



Notes on Rhogas terminalis, Pennington 60 



Breeding fruit fly parasites in the Hawaiian Islands, Bridwell 60 



Municipal control of the Argentine ant, De Ong 60 



