CONTENTS. V 



Page. 



Winterkilling of evergreens, Nash 542 



Forest conditions in Indiana, Coulter 542 



Tree planting by farmers, Tillotson 542 



The business aspect of National Forest timber sales, Woodbury 543 



Report on forest administration of Central Provinces, 1910-11, Forteath et al. . 543 



Report of forest circles in Bombay, including Sind, 1910-11, Napier et al 543 



Progress report of forest administration in Coorg for 1910-11, Tireman 543 



DISEASES OF PLANTS. 



Some recent work on fungus diseases of plants, Pammel 543 



Fungus diseases in Iowa for the year 1911, Pammel 543 



Report on plant diseases observed during 1911, Rostrup and Ravn 543 



Report on vegetable pathology, Tryon 543 



Studies of parasitized leaf tissue, Reynolds 543 



Studies of some new Citromyces, Bainier and Sartory , 543 



On root tumors, Sttf t 544 



The causes of beet blight, Peters 544 



Investigations of the potato fungus Fhytophthora infestans, Jones et al 544 



Ustilagineoe on Andropogon sorghum in America, Potter 545 



Some diseases of sugar cane in the Hawaiian Islands, Van der Stok 545 



Infectioruexperiments with the powdery mildew of wheat, Reed 545 



Notes on some apple diseases, Wolf 546 



Canker diseases of apple trees, Probst 546 



Two apple cankers, Fawcett 546 



Apple scab infection, Wallace 546 



Frost injuries to apples, Naumann 546 



Gum diseases in citrus trees, Fawcett 546 



A new species of Pyrenomycetes, Naoumow 546 



The treatment of downy mildew, black rot, and powdery mildew, Lerou 546 



Infection of the grape by downy mUdew, Ravaz and Verge 547 



The influence of weather on Peronospora disease of grape, Gerneck 547 



A new parasite of the grape, Planchon 547 



A mulberry disease, Averna-Sacca 547 



Further: studies of the pecan rust, Rand 547 



A bacterial disease of Aster chinensis, Pavarino 547 



Notes on winterkilling of forest trees, Hartley 548 



A new leaf disease of the white alder, Neger 548 



The chestnut bark disease, Rankin 548 



The oak mildew, Griffon and Maublanc 548 



The Hendersonia disease of Eucalyptus globulus, Davis 548 



Two fungus diseases of coniferous trees, Fisher 548 



The wetting power of insecticides and fungicides, Vermorel and Dantony 548 



ECONOMIC ZOOLOGY — ENTOMOLOGY. 



Report of an expedition to Laysan Island in 1911 549 



Our mid-Pacific bird reservation, Henshaw 549 



Handbook of birds of eastern North America, Chapman 549 



Michigan bird life, Barrows 549 



Hungarian partridge and pheasant in Missouri, Tolerton 550 



Studies in bird migration, Clarke 550 



The food of birds, Florence 550 



Bu-d protection with particular consideration of insect eating birds, Rorig 550 



Notes on the bionomics of rats and ground squirrels, McCoy 550 



Comparative action of bacterial and chemical rat destroyers, Aumann 550 



The rat guard used in the Philippine Islands, Fox 550 



Crawfish as crop destroyers, Fisher 550 



Handbook of pathogenic protozoa, edited by von Prowazek 551 



Bibliography of Canadian zoology for 1910, Lambe 551 



Bibliography of Canadian entomology for the year 1910, Bethune 551 



The entomological code: A code of nomenclature for use in entomology 551 



A manual of injurious insects, Collinge 551 



The brains of insects, Ziegler 552 



Report of the state entomologist, Symons 552 



Report of the state entomologist, Symons 552 



Insect pesta of the Lesser Antilles, Ballou 552 



