IV CONTENTS. 



Yield and cultural value of a number of hazelnuts, Gross 337 



Pecans, Hutt 337 



An aberrant walnut, Cardiff 337 



Rhododendrons and azaleas, Watson 337 



Commercial rose culture, Holmes 337 



The perpetual flowering carnations, Calvino 337 



The bulb book, Weathers 337 



What England can teach us about gardening, Miller 337 



General features of a park sj^stem for Chattanooga, Nolen 338 



The engineer's work in grading landscape areas, Ambler 338 



FORESTRY. 



Forest physiography, Bowman 338 



History of forestry, Fernow 338 



Literature of forest zoology, chemistry, meteorology, and botany, 1910, Weber. . 338 



Valuation of the form of forest trees. — II, Primary type of the pine, Jonson 338 



The identification of important North American oak woods, Sud worth and Mell . 338 



Distinguishing characteristics of American gum woods, Sudworth and Mell 339 



The African rubber industry and Funtumia elastica ("kickxia "), Christy 339 



Manurial experiments with Hevea rubber, Anstead 339 



A handbook of forest protection, Homans 339 



The prevention of sap stain in lumber, Weiss and Bammn 339 



Review of forest administration in British India for the year 1909-10, Bryant. . 340 



Report of the forestry department of Sweden, 1910 340 



National Forest manual. — Sales, administrative use, settlement, free use 340 



The National Forest manual. — Claims, settlement, administrative sites 340 



DISEASES OP PLANTS. 



Cultures of Uredinese in 1910, Arthur 340 



Fourth supplementary list of parasitic fungi of Wisconsin, Davis 341 



Some fungus diseases of field crops, Lochhead 341 



Some contributions to the life history and cytology of the smuts, Lutman 341 



Rust spots of the grains and the mycopla8n\ theory, Eriksson 341 



Botryosphseria on cotton bolls, Edgerton 341 



Some field experiments with potato rot, Monroe 342 



Experiments with potato scab, von Wahl 342 



The application of lime as a remedy against finger-and-toe disease, Ravn 342 



Lampsana vulgaris as a host plant of lettuce Peronospora, Noffray 342 



Spore germination and infection in certain species of Oomycetes, MeLhus 342 



Root knot and its control, Bessey 343 



A Sclerotinia on apple, Demaree 343 



On the chloranthy of Prunus viume caused by Cseoma makinoi, Kusano 343 



Recent studies on chlorosis of grapes and the effect of fertilizers, Berndstky. . . 344 



Chlorosis and lime, Provost-Dumarchais 344 



On the propagation of downy mildew by wind, Monneyres 344 



American gooseberry mildew on red currant bushes 344 



The control of the American gooseberry mildew, Williams 345 



Banana and plantain disease, Rorer 345 



The new chestnut bark disease, Williams 345 



Diseases of the white pine, Vuillemin 345 



Loranthus as a parasite on Hevea brasiliensis, Bateson 345 



On the means for combating plant diseases, Midler 345 



ECONOMIC ZOOLOGY — ENTOMOLOGY. 



The races of Indian rats, Lloyd 346 



Reproduction in the brown rat ( Mus norwegicus), Miller 346 



The birds of North and Middle America, Ridgway 346 



The relation of birds to an insect outbreak in 1911, Bryant 346 



Entomology in the West Indies 346 



Nature sketches in Temperate America, Hancock 346 



The Jola or Deccan grasshopper (Colemania sphenarioides), Coleman 347 



A resume of the locust situation, Mackie 347 



The bacteriology of the cockroach, Morrell 347 



Thrips fiava as a carnation pest in .greenhouses, Fulmek 347 



