1017] CONTENTS. V 



Page. 



Violent outbreak of Oidium on oak in France, Noffray 756 



Oidium on oak, Convert 756 



American oaks resistant to Oidium in Sologne, Noffray 756 



A species of Chrysomyxa new to North America, Jackson 757 



Mycelium of the white pine blister rust, Colley 757 



Pycnial scars, an important diagnostic character for blister rust, Colley 757 



"Black thread " disease of Hevea in Burma, Dastur 757 



Phytophthora sp. on Hevea brasiliensis, Dastvu" 757 



ECONOMIC ZOOLOGY — ENTOMOLOGY. 



New mammals from North and Middle America, Goldman 757 



The conservation of our northern mammals, Hewitt 757 



Control of the pocket gopher in California 757 



Varying hares of the prairie P^o^inces, Criddle 758 



On the ecology of the vegetation of Breckland, Farrow 758 



Description of a new race of Say's ground squirrel from Wyoming, Howell 758 



Two new pocket mice from Wyoming, Goldman 758 



Mutanda ornithologica, I, II, Oberholser 758 



The birds of South America, Brabourne and Chubb 758 



Illustrations to the birds of South America, Gronvold 758 



A new honey eater from the Marianne Islands, Wetmore 758 



A new shrew from Nova Scotia, Jackson 758 



Description of a new genus of Anatidse, Oberholser 758 



Rearing insects for experimental purposes and life history work, Wilcox 758 



The growth of insect blood cells in \itro, Glaser 759 



Toxic values and killing efficiency of the arsenates, Lovett and Kobinson 759 



Winter cover washes, Lees 759 



Accessory wetting substances, especially paraffin emulsions, Lees 759 



[Progress report of investigational work in entomology] 760 



Report on injurious insects and fungi of treeain 1914, Schoyen 760 



Preliminary account of entomological work in 1914, Zolotarevskii 760 



Some East African insects of economic importance, Deakin 760 



Insect enemies of man and the household and the diseases they convey, Beriese. 760 



Household and camp insects. Felt 760 



Coccobacillus acridiorum and intestinal organisms, DuPorte and Vanderleck 760 



The azalea lace bug, Stephanitis pyrioides, Dickerson and Weiss 761 



The Cicadellidse of Wisconsin, with new species, Sanders and DeLong 761 



Spraying for apple sucker (Psylla mali), Petherbridge 761 



Some observation on the egg of Psylla mali, Lees 761 



Plant lice on potatoes, Brown 761 



The louse and its relation to disease, Cummings 762 



Rate of increase of pink bollworm in bolls, July to November, 1916, Gough. . . 762 



Rate of increase of Gelechia gossypiella in green bolls during 1916, Gough 762 



The pink bollworm, Buchanan 762 



What effect has flooding on the pink bollworm? 762 



Sciara tritici, a fly injurious to seedlings, Edwards and Williams 762 



The mosquitoes of North and Central America and the West Indies, Howard et al 762 



Relation between hatching of the eggs, development of larvae of Stegomyia 763 



fasdata (Aedes calopus), and presence of bacteria and yeasts, AtMn and Bacot. 763 



On the biology and economic significance of Tipula paludosa, Rennie 763 



Notes on New England Tachinidae, Smith 763 



Seasonal abundance of flies in Montana, Parker 764 



Empusa muscse versus Musca domestica, Giissow 764 



Report on a trial of taned felt disks for cabbage root fly, Wadsworth 764 



Two new cambium miners, Greene 764 



Investigations of the Anthomyidse, the larvae of which are carnivorous, KeiUn. 764 



New genera and species of American muscoid Diptera, Townsend 764 



The viability of Melophagits ovinus, Sweet and Seddon . . . , 764 



Fleas as a menace to man and domestic animals, Waterston 764 



Observations on the larval and pupal stages of Agriotes obscurus, Ford 765 



Note on attacks of Phyllotreta vittula on spring com, Petherbridge 765 



A fleabeetle which attacks potato plantations on the plateaus, Dawe 765 



The bark borer (Dendroctonus micans), Tragardh 765 



On new neotropical Curculionidae, Marshall 765 



Fauna of British India. — Coleoptera. Rhynchophora: CurcuLionidse, Marshall. 765 



