rv CONTENTS. 



Page. 



On the saving of damaged beeches, Eckstein 244 



Relation between yield and soil properties with the pine, Schoenberg 244 



Pine manuring experiments on dunes of Kurischen lowlands, Rackmann... 245 



The life history of Parthenium (guayule\ Kirkwood 245 



The rubber plants in northern Madagascar, Jumelle and Perrier 245 



The natural forests of Switzerland, Brockmann-Jerosch 245 



An interesting phase of work in the Davy School of Forestry, Scott 245 



DISEASES OF PLANTS. 



Report of the botanists, Stone and Chapman 245 



Report on plant diseases from Station of Vegetable Pathology of Rome, Cuboni . . 245 



Notes on insect and fungus pests 246 



Control of scale insects in British West Indies by fungoid parasites, South 246 



On the role that fluorescent bacteria play in plant diseases, Griffon 246 



Prevention of oat and wheat smut, Stevens ._ _ 246 



Andropogon sorghum: Its cultivation and some of its enemies, Aubert 246 



A new chytridiaceous parasite of rye grass, Griffon and Maublanc 247 



Notes on the occurrence of fungus spores on onion seed, Chapman 247 



Scab and eelworm in potatoes. Holmes 247 



The symptoms of internal disease and sprain (streak disease) in potato, Home. . 247 



Causes and combating of damping off of the beet, Stormer and Eichinger 248 



The cause of gummosis of tobacco and experiments on its control. Honing. . . 248 



Control of certain greenhouse diseases, Stone 248 



Malnutrition, Stone 249 



Calico or mosaic disease of cucumber and melon. Stone 249 



Field studies of the crown gall and hairy root of the apple tree, Hedgcock 249 



Some obscure diseases of the peach, Norton 250 



Little peach disease, Caesar 250 



Experiments with nitrate of silver in combating the grape mildew, Labergerie. . 250 



A bacterial disease of bananas and plantains, Piorer 250 



On the blackening of the seeds of cacao, caused by an Acrostalagmus, Gueguen. . 251 



A new West Indian cacao pod disease, Bancroft 251 



The outbreak of blister blight on tea in the Darjeeling District, 1908-9, McRae. . 251 



Damages caused by Lophodermium macrosporum, Mer 251 



A biological study of Sterigviatocystis quercina, Sartory 251 



A leaf parasite of Quercus ilex, Gtissow 251 



A study on the black canker of the chestnut, Ducomet 251 



Note on the chestnut fungus, Davis 252 



Note on the Oidium of the Japanese euonymus, Foex 252 



Sun scorch of the pine. Stone 252 



Root infection of Trametes pini, Khan 252 



The diseases of Azalea indica, Hartmann 252 



A new gall-forming fungus on Zizyphus from the Transvaal, Magnus 252 



Spraying experiments with calcium benzoate. Stone 252 



Spraying injuries. Stone 253 



ECONOMIC ZOOLOGY — ENTOMOLOGY. 



The California ground squirrel, Merriam : 253 



The pocket gopher, Scheffer 254 



Catalogue of Canadian birds, Macoun 254 



A manual of Philippine birds, McGregor 254 



Zoological yearbook, 1909, Mayer 254 



Report of the International Commission on Zoological Nomenclature, Stiles. . . 254 



Report of the entomologist, Fernald and Summers 254 



Insects of the year, Fernald 254 



Seventh annual report of the state entomologist of Montana, Cooley 255 



[Monthly bulletin of the division of zoology], Surface 255 



Report of the entomologist [of Trinidad], Urich 255 



Notes on some insect enemies in Tobago, Guppy 255 



Report of superintendent of entomology, Ehrhorn 255 



Annual report on the entomological work for the year 1909, Jemmett 256 



Insects which kill forest trees: Their depredations and control, Hopkins 256 



Insect injuries to the wood of living trees, Hopkins _ 256 



Insect injuries to the wood of dying and dead trees, Hopkins 256 



