IV CONTENTS. [Vol. 41 



Page. 



A test of commercial fertilizers for grapes, Gladwin 341 



Some recent marketing developments in the Pacific Northwest, Lewis 341 



Tropical and semitropical fruits (exclusive of citrus fruits), Fenzi 341 



Some profitable and unprofitable coffee lands, McClelland • 342 



Effect of different methods of transplanting coffee, McClelland 342 



[Report on date investigations], Forbes 342 



[Report of date breeding experiments]. Freeman and Bryan 342 



Weather conditions as affecting plant growth, Thornber 343 



Annual and other flowers which can not be classed as hardy perennials__ 343 



The preservation of pollen for hybridizing, Saunders 343 



Horticultural libraries in the United States, Warner 343 



FOBESTBY. 



National afforestation, Webster 343 



Commercial forestry 343 



Forestry, Honda and Takenob 343 



A forestry policy of New Zealand, Bell 343 



Reclamation of sand dunes. Turner 343 



Vacation days in Colorado's National Forests 344 



Vacation trips in the Cochetopa National Forest 344 



The Ouray Mountains of the Uncompahgre National Forest 344 



A vacation land of lakes and woods. — The Superior National Forest 344 



Historical review of Bergius arboretum for the period 1S85-1914, Fries 344 



Storied or tier-like structure of certain dicotyledonous woods, Record 344 



Studies of regeneration conditions in Norrland pine forests, II, Hesselman_ 344 



The arborescent indigenous legumes of Hawaii, Rock 344 



The production of aspen, Schotte 345 



The larch and its importance in Swedish forest economy, Schotte 345 



The cultivation of osiers and willows, Elmore, edited by Okey 345 



Rubber plants, Hall and Long 345 



Thitsi, with special reference to the oleo-resin obtained from it, Wright 345 



DISEASES OF PLANTS. 



Plant disease inquirie.s, Thornber 345 



New or interesting species of fungi, IV, House 346 



On cell regeneration in Botrytis cinerea, Brierley 346 



Blossom infection by smuts, Jensen 346 



The black or stem rust of wheat 346 



Destroy the common barberry, Stakman ■346 



Leaf-spot diseases of alfalfa and red clover, Jones 346 



[Work in plant genesis], Blakeslee 347 



Chlorotic corn, Davis 347 



The influence of drought and of Alternaria on potato, Sordina 347 



The eradication of yellow stripe of sugar cane 347 



Blister canker of apple trees, a physiological and chemical study. Rose 347 



The effect of crown gall upon a young apple orcliard, Greene and Melhus_ 348 



[Spraying at the Neoga Station. Illinois, 1915-16], Brock 348 



Brown rot, its importance and control, Benson 348 



Control of cherry leaf spot, Roberts and Pierce 348 



Notes on vine black spot or anthracnose. de Castella and Brittlebank 349 



Black spot and leaf curl, Laidlaw and Brittlebank 349 



Disease of the vine [New South Wales] : Downy mildew, Laffer 349 



Downy mildew [grape] Plasmopara viticola, de Castella and Brittlebank_ 349 



Copper fungicides for vine diseases, de Castella 349 



Comparative effect of basic and acid copper sprays, Capus 349 



Citrus spots and blemishes, Matz 350 



Coconut bud rot, Nowell 350 



Coffee leaf disease (Hemilcia rastatrix) in Uganda, Simpson 350 



Sprays for coffee affected with H. rastatrix and other diseases, Dawson — 350 



Report on white pine blister rust control, 1918 350 



Status of white pine blister rust control in 1918, Detwiler 351 



Scientific research and field investigations in 1918, Spaulding 351 



Investigation [of white pine blister rust], McCubbin 352 



Infection of Ribes and white pines with Cronartium ribicola, Clinton 352 



