CONTENTS. V 



Page. 



Trials with the hot-water treatment for six-rowed barley, 1908, Mortensen 246 



Preliminary note on a serious stem disease of alfalfa 246 



The club root disease, Ravn 246 



Black rot of ginseng roots, Rankin 246 



Observations on potato canker, Josting 246 



The leaf curl and bacterial disease of potatoes, Steglich 246 



Directions for spraying potatoes, Milward 247 



Observations concerning the American gooseberry mildew, 1906-1908, Lind . . . 247 



Apoplexy of grapevines, Ravaz 247 



Treatment for powdery mildew, Chappaz 247 



Grape spraying experiments in Michigan, 1907-8, Shear and Hawkins 247 



Spraying for peach fruit spot, Cordley and Cate. 248 



The bleeding stem disease of the coconut tree in Ceylon, Fetch 248 



A fungus parasite of rubber. Funk 248 



A new fungus pest of Para rubber, Ridley 248 



The biology of Armillaria mucida, Fischer 248 



Studies on the biology of Gymnosporangium juniperinum, Fischer 249 



Studies of Xylaria hypoxylon, Harder 249 



Some fungus parasites of algie, Atkinson 249 



Experiments in combating nematodes, Kiihn 249 



Bordeaux mixtine, how to make and apply it, O'Gara 249 



ECONOMIC ZOOLOGY — ENTOMOLOGY. 



A bibliography of the Russian fauna, Koppen 249 



Antiplague operations on the Pacific coast to November 1, 1909 249 



The squirrel campaign in Contra Costa County, California, Rucker 250 



The decrease of certain birds, and its causes, Forbush 250 



Protozoology, Calkins 250 



The relation of certain parasites to bacterial disease, Shipley 250 



The role of Collembola in economic entomology, Collinge 251 



A flagellate parasite in the latex of Euphorbia piluli/era, Lafont 251 



Herpetomonas aspongopi, Aders 251 



Note on two new flagellate parasites in fleas, Mackinnon 251 



Report of the entomologist, Headlee 251 



Insects of the year, Fernald 251 



Report of the entomologist, Tower 252 



Some observations concerning injurious insects, Rostrup 252 



Reports of injurious insects in Finland in 1906-7, Reuter 253 



A handbook of the destructive insects of Victoria, French 253 " 



Standards of the number of eggs laid by insects, VIII, Girault. ... 253 



The life history of the agrionid dragon fly, Balfour-Browne 253 



Destruction of the houtkapper white ants 253 



The periodical cicada in Massachusetts, Hooker 253 



The cane sucker, Urich 253 



The Desmodium aphid, Microparsus rariabilis n. sp.. Patch 254 



A new pest of the Florida orange. Back 254 



The San Jose scale and methods of controlling it, Britton : 254 



The gloomy scale, Sherman, jr 254 



New observations on the olive tineid, Dumont 254 



Insect plague in Saxony, Norton 254 



Tineids attacking pears, Passy 255 



Robber-flies of America belonging to Leptogastrinae and Dasypogoninae, Back. 255 



Tabanidse of Brazil and neighboring countries, Lutz 255 



The breeding of the common house fly during the winter months, Jepson 255 



A possible natural enemy to the mosquito, Atkinson 255 



Contribution to the study of the mosquitoes which live in salt water, Clerc 255 



The regional distribution of fleas on rodents, McCoy and Mitzmain 255 



Revision of the New Zealand Cossonidae, with new genera and species, Broun. 255 



On the Ichneumonid genus Echthromorpha, Kreiger 255 



[The North American Cynipidse and their galls], BeutenmuUer 255 



Ants of Formosa and the Philippines, Wheeler 256 



The lesser clover-leaf weevil, Webster 256 



The slender seed-corn ground-beetle, Phillips 256 



Insect enemies of corn, Sherman, jr 257 



Some insects injurious to truck crops, Chittenden 257 



Spraying apples for curculio and codling moth, Taylor -'58 



