IV CONTENTS. [Vol. 36 



Page. 



The vanilla plantations of Tahiti and Moorea, Meinecke 445 



Germination of yerba, Garin 445 



Yerba mate {Ilex paragvxiyensis), Bertoni 455 



The American nut industry, Gossard 445 



Effects of large applications of fertilizers on carnations, Beal and Muncie 445 



The history and botanical relationships of the modern rose, Wilson 446 



Some suggestions for improvement of the home grounds. Sill 446 



FORESTRY. 



Handbook for rangers and woodsmen, Taylor 446 



The germination and early growth of forest trees, Boerker 447 



Variations in the anatomical structure of wood, Prichard and Bailey 447 



Relationship of the Douglas fir to lime in soil, Somerville 447 



The girth increment of Hevea brasiliensis. Fetch 447 



Sugar pine, Larsen and Woodbury 447 



The forests of Worcester County, Cook 447 



Improving the woodlot. Berry 447 



Scientific national forestry for New Zealand, Hutchins 448 



Annual statistics relating to forest administration in British India, 1914-15 448 



Snow, injury to trees, Rigg 448 



Forest fires in the United States in 1915, Peters 448 



Forest insurance against fires in Finland, Nylander 448 



Better apparatus for forest fire fighting, Johnson 448 



DISEASES OF PLANTS. 



Plant diseases, Anderson 448 



Mycology, Shaw 448 



Nonparasitic stem lesions on seedlings. Hartley 449 



Life history and poisonous properties of Claviceps paspali, Brown 449 



Neocosmospora vasinfecta on potato and adzuki bean, Wolf 450 



Pleosphaerulina on alfalfa, Jones 450 



Dissemination of bur clover leaf spot, Wolf 450 



Experiments to control late blight of celery 450 



The Rio Grande lettuce disease. Carpenter 450 



A new smut on Sorghum halepense, Evans 450 



Control of the sugar-beet nematode, Shaw 450 



Rhizoctonia and Sderotium rolfsii on sweet potatoes, Harter 451 



A specific mosaic disease in Nicotiana viscosum, Allard 451 



Tomato blight, Jones 451 



Phytophthora inJ'esUms on tomatoes, Kern and Orton 451 



Phomopsis mah on young apple and pear trees in California, Smith 451 



Observations on sour sap disease of apricots, Phillips 451 



A new leaf spot disease of cherries, Rudolph 452 



The action of copper sulphate on downy mildew, Semichon 452 



The action of copper salts against grape downy mildew, Semichon 452 



Some new strawberry fungi, Stevens and Peterson 452 



The diseases of bananas, van der Laat 452 



Sderotium rolfsii on citrus. Wolf 452 



Cottony rot of lemons in California, Smith 452 



A Gloeosporium disease of the almond probably new to America, Czarnecki. . . 453 



The harcf rot disease of gladiolus, Massey 453 



Red leaf spot of Hippeastrum, Dougherty 453 



Notes on oleander bacteriosis. Smith 453 



Spraying experiments to prevent rose leaf blotch 453 



Forest botany. Hole 453 



Fungus diseases of trees, Maxwell 453 



A fertile witches' broom on larch, Jaccard 453 



Peridermium harknessii and Cronartium quercuum, Meinecke 454 



Piniis resinosa, a new host for Peridermium acicolum, Pierce 454 



White pine blister rust (Peridermium strobi) 454 



[Disease in pine and chestnut], Rane 454 



Spread of the chestnut blight in Pennsylvania, Metcalf 454 



Influence of Bordeaux mixture on transpiration from leaves and plants, Martin . 454 



Sulphur fungicides, Gray 455 



