rV CONTENTS. IVol. 88 



FORESTRY. 



Pnge. 



The forests of Maryland, Besley 144 



Forestiy investigations 144 



Forest progress in the Drakensberg, Henkel 144 



Statistics of Forest Research Institute, Dehra Dun, diu-ing 1915-lG, Marsden .... 144 



Report of the director of forests, Jolly 145 



Evaporation records from the Gulf coast, Gano and McNeill 145 



"Black storms " and tlieir relation to forestry, Kirillov 145 



Trees recommended for planting, Rock 145 



Forest fire prevention in cooperation with Government, Foster and Millen 145 



Forest depredation and utiUzation, Rane 145 



Natural reproduction from seed stored in the forest floor, Hofmann 145 



The red spruce: Its growth and management. Murphy 146 



Preliminary study of white spruce in Minnesota, Kenety 146 



Note on rea sauders (Pterocarpus santalinus) , Whitehead 146 



Review of properties of rubber of different gi-ades, de Vries and Hellendoorn. . 146 



Relation between specific gi-a^-ity and rubber content of latex, de Vries 146 



Properties of rubber and influence of the tapping system, de Vries 146 



Wood utilization directory of New York, Harris et al 146 



Forest products of Canada, 1916. — Lumber, lath, and shingles 146 



Forest products of Canada, 1916. — Poles and crossties 147 



DISEASES OP PLANTS. 



A textbook of mycology and plant pathology, Harshberger 147 



Plant diseases in Canada, Giissow 147 



Noteworthy Porto Rican plant diseases, Stevens 147 



Diseases and injuries of plants, Ritzema Bos 147 



Pythiacystis related to Phytophthora, Barrett 147 



Puccinia glumarura, Humphi'ey 147 



A new parasitic nema found infesting cotton and potatoes, Cobb 147 



Cereal smuts, Zeman 148 



Overwintering and distribution of cereal rusts in subtropical climate, Gassner . . 148 



Frost injury to cereals, Zimmermann 148 



A gu'dling of bean stem^s caused by Bacterium phaseoli, Muncie 148 



The susceptibility of Phaseolus vulgaris to bean rust, Jordi 149 



On a sudden outbreak of cotton rust in Texas, Taubenhaus 149 



Lightning injury to kale, Jones 149 



A physiological study of two strains of Fusarium, Link 149 



The mosaic disease of potatoes. Murphy 149 



Experiments in the control of potato leak, Hawkins 149 



Losses of potato growers, Wortley 149 



Report on potato diseases in Bermuda, Orton 149 



A new disease of sugar cane, Stevenson 150 



Bacterial leaf spot of tobacco. Wolf and Foster _. 150 



On a case of recovery from mosaic disease of tomato, Brierly 150 



The leaf spot disease of tomato. Coons and Levin 150 



Tomato diseases, Barre and Seal 150 



Overwintering of the apple scab fungus. Eraser 151 



Three cedar rust fungi, their life histories and diseases they produce, V/eimcr . . 151 



Inoculations on Ribes with Cronariiuvi ribicola, Spaulding and Gravatt 151 



[Plant diseases, 1914-15] 151 



Plant diseases and control 151 



The question of curing roncet, Pantanelli 151 



Dieback, or exanthema, of citrus trees, Floyd 151 



Armillaria root rot on the English walnut, Pearcy 152 



A new disease of cultivated Pelargonium, Lingelsheim 152 



Hybrids and other new chestnuts for blight districts. Van Fleet 152 



New hosts for RazoumofsJcya ammcana and R. occidentalis abietina, Weu- 152 



Report on the South American leaf disease of the Para rubber tree, Bancroft 153 



Control measures for the South American Hevea leaf disease, Stahel 153 



Fighting the South American leaf disease of Hevea 153 



An abnormal leaf fall in Hevea, Arens 153 



Efficacy of acid, neutral, or alkaline Bordeaux mixture, Vermorel and Dantony . . 153 



Acid or alkaline sprays, Vermorel and Dantony 154 



