1917] CONTENTS. V 



DISEASES OF PLANTS. 



Pago. 



Fungus and bacterial diseases, Novvell 452 



Annual report of the mycologist for the year 1913-14, Dowaou 453 



Annual report of the mVcologist for the year ending March 31, 1915, Dowsou. . 453 



The treatment of fungus diseases by spraying, Salmon and Eyre. 453 



(control of root knot by calcium cyanamid and other means, Watson 453 



Rosellinia root diseases in the Lesser Antilles, Nowell 454 



Observations on a new disease in cotton, Patel 454 



Studies on clubroot of cruciferous plants, Chupp 454 



Bitter pit investigation, McAlpine 455 



Xylaria root rot of apple, Wolf and Cromwell 45G 



[Brown rot of plum and apple] 457 



Further studies of the orange rusts of Rubus in the United States, Kunkel .... 457 



Note on a Botrytis disease of fig trees, Brierley 457 



The "band" disease of betel-nut palms in the Konkan, Gokhble et al 457 



An epidemic of rust on mint, Chivers 457 



\Lophodenniuni pinastri and Phacidium infestans on pine], Lagerberg 458 



The pine blister disease 458 



Recent study of pod disease and canker in Hevea, Rutgers 458 



Root disease of plantation rubber due to Porta hypolaterita, Belgrave 458 



Some suggestions on the control of mistletoe in the Northwest, Weir 458 



ENTOMOLOGY. 



Recognition among insects, Mclndoo 459 



Proceedings of the Entomological Society of British Columbia 459 



Seventh annual report of the State entomologist, Gillette and List 459 



[Parasite work in Maine], Summers 459 



Report of the economic zoologist, Surface 459 



[Insect pests]. Surface 459 



[Report of the] division of entomology, Scholl 459 



I Report of entomological work], Agee 459 



Insect pests [in the West Indies during 1915], Ballon 460 



Insect pests in St. Vincent] 460 



Insects of economic importance in South America] 460 



Insects of economic importance in South America] 460 



Insects and insect control in Germany] 460 



Report of the entomological laboratorjr for 1915, Anderson 460 



Some reasons for spraying citrus trees in Florida, Yothers 460 



Typha la'Jfolia as a summer host of injurious insects, Davidson 461 



Hackberry insects and their control. Paddock 461 



Contribution to a study of the toxins of spiders, L^\'y 461 



The genera and species of Mallophaga, Harrison 461 



Field notes on Virginia Orthoptera, Fox 461 



Fourth campaign against locusts {ScMstocerca peregrina) in Algeria, B^guet. . . 461 



The fungus on cacao thrips, Nowell 461 



Cost of spraying for pear thrips in British Columbia, Cameron et al 462 



The green apple bug in Nova Scotia, Brittain 462 



The spiny citrus white fly.- — A potential pest of citrus trees, Hutson 462 



The spiny citrus white fly and means for its control in Cuba 402 



On the supposed varieties of Chrysomphalns dictyospermi, Malenotti 462 



The codling moth and its control in the Western Province, Pettey 463 



Statistics on the production of silk in France and elsewhere 463 



The meadow foxtail midge, Cockayne 463 



Anopheline mosquitoes. — Their distribution and infection, Mitzmain 463 



Is mosquito or man the \vinter carrier of malaria organisms? Mitzmain 463 



Muscicides and other fly-destroying agencies, Phelps and Stevenson 464 



The limitations of kerosene as a larvicide, Macfie 464 



Observations on the distribution of warble flies in Ohio, Mote 464 



The poplar and willow borer (Cryptorhynchus lapathi), Matheson 464 



Evidence that bark borers are able to kill healthy fir trees, Welander 465 



The bean beetle (Epilachna co'irupta), Merrill 465 



1916 tests of sulphur-arsenical dusts against strawberry weevil, Headlee 466 



Further trial of sulphur-arsenate of lead dust, Headlee 467 



Method of cockchafer control used in Germany, Escherich 467 



Descriptions of various chalcidoid Hymenoptera with observations, Girault . . . 467 



