Mineral requirements for the growth of dairy heifers 231 



Studies in the chemistry of pasture grasses 231 



Utilization of onions by eanniug 232 



Department of Pomology: 



The interrelation of stock and scion in apples 233 



Tree character of fruit varieties 234 



The genetic composition of peaches 234 



Testing methods of pruning 234 



Effect of pruning bearing apple trees 234 



Comparison of cultivation and sod in a bearing orchard 235 



Comparison of clover sod and grass in a sod mulch orchard 235 



Tests of different amounts of nitrate of soda 235 



Comparison of cultivation and heavy mulching for apples and pears 235 



The effect of fertilizer limitation on fruit plants 235 



Role of potash and lime in fruit tree nutrition 236 



Effect of potash and lime on apple trees 236 



Study of vai'ieties of tree fruits 236 



Bud formation in the strawberry 237 



Bud mutations 237 



Light pruning of young grapevines 237 



Storage of Mcintosh apples under various conditions 238 



Study of various spray materials , 238 



Blueberry culture 238 



Cross pollination and sterility studies with certain apple varieties 238 



Department of Poultry Husbandry: 



Broodiness in poultry 238 



Breeding poultry for egg production 238 



Statistical study of heredity in Rhode Island Reds 239 



A genetic study of Rhode Island Red color 239 



Determination of genetic laws governing results of inbreeding 239 



Hereditary and environmental characteristics affecting variability in egg production 239 



Factors affecting egg weight and shell character in domestic fowl 239 



Relation of intensity or rate of laying to feather pigmentation 239 



Department of Veterinary Science: 



Poultry disease elimination law 239 



Pullorum disease investigations 240 



Laboratory service — pathology 241 



Farm and Station Bang's disease 241 



Infectious laryngotracheitis 241 



Moldy corn 242 



Infectious bronchitis 242 



Avian paralysis 242 



The Waltham Field Station: 



The plant house 243 



Electricity as a source of heat in the hotbed and propagating bench 243 



Vegetable variety trials 243 



Asparagus investigations 244 



Seed improvement 245 



Cooperative Tobacco Investigations: 



Black root-rot 245 



Mosaic 246 



Publications 247 



Changes in staff 249 



