IV CONTENTS. [Vol.41 



Page. 



Fragrant roses, Van Fleet 742 



Monograph on the doubling phenomenon In tulip flowers, Ortlepp 742 



Tulips and their ways. Dykes 742 



Small atlas of wild, useful plants, Obermeyer 742 



Our more important wild, medicinal, aromatic, and tea plants, lioss 743 



FOKESTBY. 



Progress, literature, and happenings in forestry for 1914, Weber 743 



Massachusetts and her forests, Kane 743 



Commercial forestry in Britain : Its decline and revival, Stebbing 743 



Forest-making in the United Kingdom, Bastin 743 



[Report of] mission for study of forest conditions, I-II, Bortin et al 743 



The native forests of western Australia, Zalocostas 743 



Report of forest circles in Bombay Presidency, including Siud, for 1917-18_ 744 



Report on forest administration of Central Provinces for 1917-18, Hill 744 



Report oi forest department of Madras Presidency for 1918, Latham et al_ 744 



Report of forest administration in the Punjab for year 1917-18, Mcintosh- 744 



Report on forest administration of United Provinces, 1917-18, Clutterbuck_ 744 



Influence on dimension of trees on the efficacy of the thinning, Mer 744 



Notes on acacia, II-III, Maiden 744 



Flower development and branch growth of the red beech, Biisgen 744 



Notes on Eucalyptus, with a description of a new species, V, Maiden 744 



Some ironbarks of New South Wales, Baker 744 



[Rubber investigations on the Gold Coast, 1916 and 1917] 745 



On the occurrence of crystals in some Australian timbers, 'Baker 745 



DISEASES OF PLANTS. 



Fusarium diseases of potatoes and truck crops in Minnesota, Bisby 745 



Fungus diseases [in Ceylon], Petch 745 



Cooperation in plant quarantine among Pan-American countries, Johnston_ 746 



Introduction into United States of extra limital fungi. Weir 746 



New Japanese fungi : Notes and translations, IV, Tanaka 746 



A novel method of aseospore discharge, Atanasoff 740 



Factors influencing action of ZnS04 on Asper-f/iUvs niger, II, Steinberg 746 



Studies in the genus Gymnosporangium, II, Dodge 746 



Studies in the genus Gymnosporangium, III, Dodge 746 



Take-all and flag smut new to United States, Humphrey and Johnson 746 



[Barberry and wheat rust]. Freeman 747 



Ear cockles in wheat, Somerville 747 



Smut diseases of barley and of oats, Mercer and Mercer 747 



Segregation of susceptibility to parasitism in maize, Jones 747 



A bacterial root rot of field corn, Rosen 747 



Seed potatoes and iwtato diseases, Bisby 748 



Investigations on potato diseases, IX-X, Pethybridge 748 



Potato ?spraying experiments at Wye Station, Salmon and Wormald 749 



Blast of Paddy, McRae 749 



A disease of the yam, Wakefield 749 



Vegetable diseases and their remedies, Hoerner 749 



Preventing winter injury to fruit trees, Whitten 749 



The menace of silver leaf -- 7.50 



Growth of apple trees injured in the nursei\v Schoene and Reppert 750 



Field experiments in spraying apple orchards for blotch, Gunderson 750 



An undescribed species of Ophiodothella on Ficus, Bessey 750 



Spraying [grapevines for downy mildew] after July 15, Cadoret 751 



The action of copper on vegetation, Cadoret 751 



Notes on powdery mildews and ammonium polysulphid wash, Eyre et al_ 751 



Further data on the citrus canker affection at Laniao, Lee 751 



Carnation stem rot and its control, Peltier 752 



Snapdragon rust, Peltier 7.52 



Some diseases of trees in greater New York, Graves 7.52 



[Direct] transmission of blister rust from pine to pine, von Tubeuf 752 



Diapryrthc taleola, an ascomycete injurious to oaks, Moreillon 7.52 



The distribution of mistletoe in Switzerland, Coaz ., ^-- 753 



