1S18] CONTENTS. V 



Page. 



The perfect stage of Glceosporium venetum, Burkholder 262 



Changes in strawberry fruits by Rhizopus nigricans, Stevens and Hawkins 252 



End rot of cranberries, Shear 252 



A Rhizoctonia of the fig, Matz 252 



Variations in Colic lotrichum gloeosporioides, Burger 252 



Species of Melampsora occurring upon Euphorbia in North America, Mains. . . 252 



Diseases of ornamental plants, Babcock 252 



Recent cultures of forest tree rusts, Weir and Hubert 253 



Pycnial stages of impoitant forest tree rusts, Weir and Hiibert 253 



Notes on Razoumofskya campylopoda, Hedgcock and Hunt 253 



Witches' brooms on liickory trees, Stewart 253 



A Nectria parasitic on Norway maple, Cook 253 



Sparassis radicata, an undescribed fungus on the roots of conifers, Weir 253 



Needle rust on Finns resinosa, Spaulding 253 



Contributions to our knowledge of the white pine blister rust, McCubbin 254 



Early discovery of wlute pine bhster rust in the United States, Pierce 254 



Quarantines against the white pine bhster rust, Spaulding and Pierce 254 



Synthetic culture media for wood-destroying fungi, Pieper et al 254 



The mononchs, a genus of free-hving predatory nematodes, Cobb 254 



Segmentation in nematodes, Cobb 254 



The cuprammonium washes, preparation, properties, and application, Butler. . 255 



ECONOMIC ZOOLOGY — ENTOMOLOGY. 



Life zone investigations in Wyoming, Cary 255 



The rat pest. Nelson 255 



A distributional hst of the land birds of west-central Oregon, Shelton 255 



Birdcraft, Wright 255 



Your bird friends and how to win them, Dodson 255 



Bird houses 256 



Bibhography of Canadian zoology, W^alker 256 



BibUography of Canadian entomology for the year 1915, Bethune 256 



Index to American economic entomology, 1905 to 1914, compiled by Banks. . . 256 



Studies in insect life and other essays, Shipley 256 



Control of insect pests and plant diseases in the United States, Marchal 256 



Nineteenth annual report of the State entomologist for 1916, Worsham 256 



[Report of the] department of entomology, Fernald 256 



Work connected with insect and fungus pests and their control 256 



Report on insect pests in Finland for 1913, Linnaniemi 256 



Work of Kief station in control of insect pests in 1914, Dobrovlfansk'ii 256 



Report of the imperial entomologist, Fletcher 257 



Economic zoology 257 



Pests and diseases of New Zealand flax, Miller 257 



Paddy pests in Travancore 257 



Insects and diseases of orchards and garden and control, Ralston and Marshall. . 257 



Common garden insects and their control, Gibson 257 



Spraying for apple aphids and red bugs in New York, Hodgkiss 257 



Defoliation, a defensive measure against vine pests, Capus 257 



Shade and forest insects in Manitoba, Swaine 257 



Insects and prickly pear, Froggatt 257 



Household pests and their treatment, Garman 258 



The parasite methods of controlling insect pests, Smith 258 



The doulile purpose spray, Ramsay 258 



Fumigation of greenhouse plants with hydrocyanic acid, Sasscer and Borden. . 258 



Detection of hydrocyanic acid gas. — Use of small animals, Grubbs 258 



The Blattidte of North America, north of the Mexican boundary, Hebard 258 



Destruction of the migratory locust, Caride Massini 258 



Fighting grasshoppers in 1916 and suggestions for control of this pest, Jones. . . 258 



Is Diestranimena marmorata an injurious insect? Wolff 258 



Thrips attacking French bean flowers 258 



Combating pear thrips in Saanich Peninsula, Cameron and Treheme 259 



Galls of Java. — II , Thysanopterous cecidia, Karny and van Leeuwen-Reijnvaan . 259 



Helopeltis in tea gardens, Leef mans 259 



Contribution to the Helopeltis problem in tea cultm'e, Leefmans 259 



Citrus white fly on lemons and oranges in Mendoza, Argentina, Sanzin 260 



Life history of Macrosiphum ilUnoisensis, the grapevine aphis. Baker 260 



Aphididse of California, [XII], Essig 260 



