1010] CONTENTS. Ill 



V.Uli I I I'l KAI. ItoTANY. 



Page. 



Botanical activity in the District of Columbia and vicinity, Riokor 726 



Cytology of myxomyoetes with special reference to mitochondria, Cowdry.... 72<; 



Physiological predetermination : I, Soaking seeds, Kidd and Wesl 727 



The sulphur requirement of (he red chn er j'lmi , Tottingham 727 



Products hi" diastatic degradation of inulin, Wolff and Geslirj 727 



Wound periderm in certain cacti, Coutanl 728 



Significance of false witches' brooms in ericaceous plants, Dufrenoy 728 



Hybrid sunflowers, Cockerel! 728 



II volution of maize, Weatherwax 728 



< h, nopodium nuttallias, a food plant of the Aztecs, Safford 728 



FIELD CROPS. 



[Report of field crops work in Alabama], < 'authen et al 728 



Experimi ate al Substation No. :>, Angleton, Tex., 1909- 1916, \\ inl re 72s 



| Report of work with field crops in \\ ashingtonj 730 



[Report of work with field crops in Michigan], Housholder 731 



[Report of field crops work in Minnesota, 1917] 73] 



1 1: jiort of field crops work at Crookston substation, 1917], Selvig 732 



[Report of field crops work at Grand Rapids substation, 19171, Bergb 7:: 1 



[Report of work with field crops on the ( anada Experimental Farms, L916] 



Spring small grains in Indiana, Wiancko and Cromer 735 



Farm practices in grain fanning in North Dakota, Hennis and Willard 735 



Pea and oal hay for northern Ohio, Thatcher 736 



Inoculation of legumes, Emerson 736 



Spacing of rows in corn and its effect upon grain yield, Conner 736 



Grain sorghum improvement, Conner and {Carper 737 



Farm practice in growing sugar bcete in California, Summers et al 737 



Sweet potato growing, Miller 738 



The spring wheat situation in Ohio, Williams 738 



The survival of weed Beeds, Urenehley 738 



Whitetop and its control, Pipal 738 



HORTICULTURE. 



Report of the horticultural d-partment], Greene 738 



Investigations with fruits and vegetables] 740 



Reporl of horticultural investigations] 740 



teporl from the division of horticulture for 1917, Macounel al 741 



experiments with ferl ilizers on greenhouse crops, White 741 



The pollination of greenhouse tomatoes, White 741 



Early tomato growing in New Jersey, DeBaun 712 



Spring spraying program for 1910, Frank 712 



[Report of tlm | fruit breeding farm, Zumbra Heights, Haralson 7 12' 



Growing fruit for home use, Gould and I Harrow 712 



Some soil treatments for mature apple orchards, Pickett 7 12 



Disease resistance of apples 712 



Prune the cherry tre< s, Roberta 742 



Training raspberries and blackberries, Ktahl 743 



FORESTRY. 



Forest research and the war, Clapp 743 



Reconstruction and the conservation of American forests, Tourney 743 



Forestry and reconstruction in New York, Baker 743 



Need for a unified forest research program, Tourney 743 



Some remarks on State forest policy, Hosmer 743 



Some reflections upon Canadian forestry problems, Howe 7 13 



Planting in relating to the future of National Forests, Johnson 743 



What the National Forests mean to the water user, Dana 743 



The National Forests. — The last free hunting grounds, Leopold 743 



The organization of finance in forestry industry, Kirkland 743 



Private forestry, Graves 714 



Forestry as a rural community project, Hosmer 744 



Marketing timber from farm woodlands, Besley 744 



Seventh report of State forester of California, 1916-191S, Homans 744 



