1919] , CONTENTS. IH 



Page. 



Intercrosses between self-sterile plants, East 223 



Analysis of C'hiin?:es in progressive mutation. La Rue and Bartlett 224 



Variations in somatic chromosomes in G-JnotJicra scintillans, Hance 224 



Interrelationsliips of characters in seedlings of Phaseolus, Harris 224 



Tubers within tubers of Solanuni tuberosum, Stewart 224 



FIELD CROPS. 



[Report of field crops work in Idaho, 1918], Bonnett et al 225 



[Report of field crops work on the Aberdeen substation, 1918], Aicher 226 



[Report of field crops work. in Iowa, 1918] 226 



Variety testing and crop improvement, Knight 227 



[Report of agricultural association of Zeahind, in 1918], Jacol)sen 228 



[Work in 1917 at Leteensuo and Syd-Osterbotten], Malm 230 



[Irrigation experiment with alfalfa and wheat]. Knight 231 



Clover and gi'ass seeding in conversion of waste land to meadow, Grisch 231 



Brown hay, Linkiater 232 



Cassava experiments, 1916-1918, de Verteuil 232 



How to increase Indiana corn yields, Wiancko 232 



Yield of corn frrmi seed grown xuidcr different conditions, Stookey 232 



Present position and future prospects of natural indigo industry, Davis 233 



Experiments with potatoes 233 



An analysis of the costs of growing potatoes. Fox 233 



Sudan grass as an Ohio crop, Williams 234 



A study of sugar cane experiments. Cross 234 



Experiments on the time of sowing turnips and rutabagas 234 



The heredity of quantitative characters in wheat. Freeman 235 



Seed Reporter 235 



Pure seed law and the weed control act, Wenger 236 



HORTICtTLTXTRE. 



The bonk of the home garden, Fullerton 236 



Vegetables and their cultivatioi'., Sanders 236 



A handbook of vegetable culture, Molegode 236 



Bud variation as a practical asset in horticulture, Dorsey 236 



The effect of the frosts of the winter of 1916-17 on vegetation, Bowles 236 



California erop distribution and estimates 1918 237 



Analyses of insecticides and fungicides 237 



[Beets and peas at Wisley] 237 



Cabbage culture, Rigney 237 



General arboriculture, Priego . 237 



[Report on horticultural investigations] 237 



[Report on horticultural investigations], Hansen 238 



Fruit growing in the semiarid Northwest, Pfaender 238 



The Australian fruit industry. — Its development and importance, Allen 238 



The Lorette system of pruning, Durham 238 



The healing of pruning wounds, Brierley 238 



Decade records of Ohio apple orchards. No. 1, Gossard 239 



Pruning experiments with peaches, Blake and Connors 239 



Pollination of the Bartlett pear. Tufts 240 



" Reversion " and resistance to " big bud " in black currants, Lees 241 



The pruning of young vines, Daumas 241 



Notes on some hybrid bearers, Pee-Laby ^ 241 



The hybrid bearers in 1918 at the Toulouse Testing Garden, Pee-Laby 241 



The reconstitution in Champagne, Philipponnat 241 



Varieties of the Satsuma orange, Scott 241 



Pruning r. no pruning of full bearing Washington navel trees, Shamel 241 



Improving the soil in a young orchard, Prizer 241 



[Cacao, coffee, tea, and rubber in Uganda], Simpson and Maitland 242 



Cultivation of the Robusta types of coffee, Deutrom 242 



Pruning- experiments with young tea, Andrews 242 



Report of chief gardener, Moore 242 



[Delphiniums, myosotis, and annual poppies at Wisley, 1917] 242 



The history of Ananas and Agave, Killermann 242 



The dahlia : , 242 



