The mineral constituents of forage crops 330 



Mineral requirements for the growth of dairy heifers 330 



Department of Pomolo'iv 331 



The interrelation of stociv and scion in apples 331 



Tree characters of fruit varieties 331 



The genetic coiiijiosition of peaches 331 



He;td formation in apple trees 332 



Testing methods of pruning 332 



Effect of pruning on bearing apple trees 332 



Comparison of cultivation and sod in a bearing orchard 332 



Comparison of clover sod and grass in sod mulch orchard 332 



Test of different amounts of nitrate of soda 333 



Comparison of cultivation and heavy mulching for apples and 



pears ' 333 



The effects of fertilizer limitation on fruit plants 333 



Role of potash and lime in fruit tree nutrition 333 



Effect of jiotash and lime on aii])le trees 334 



Study of varieties of tree fruits 334 



The cultivation of the high bush cranberry 334 



Fruit bud formation in the strawberry 334 



Work not on a project basis 335 



Cross-pollination and sterility studies with certain apple 



varieties 335 



The effect of freezing temperatures on apples 335 



Studies of the arsenical residue on apples 335 



Light pruning of young grapevines 335 



Department of Poultry Husbandry 336 



Broodiness in poidtry 336 



Breeding poultry for egg production 336 



Statistical study of heredity in Rhode Island Red breed of poultry 336 



A genetic study of Rhode Island Red color 336 



Determination of genetic laws governing results in inbreeding 



poultry 33 7 



Hereditary and environmental factors affecting variability in 



egg production 337 



Factors governing egg weight and shell character in domestic fowl 337 



Relation of intensity or rate of laving to feather pigmentation 337 



Department of Vegetable Gardening (Waltham) 338 



Conditions affecting the production and vegetative propagation 



of Washington asparagus 338 



The genetics of greenhouse cucumbers 339 



Cold resistance in sweet corn in its relation to quality, size 



and earliness 33'9 



Factors influencing the heading of greenhouse lettuce 340 



The impro\ement of beets through selection of roots and seed 



production S"^" 



The improvement of carrots through selection of roots and seed 



production 340 



Department of Veterinary Science 340 



The standardization of avian diphtheria, roup or bird pox virus 

 and vaccines with special reference to improving the treat- 

 ment of the disease 340 



Laboratory service 340 



Poultry disease elimination law 340 



Special Tobacco Investigations 341 



Publications ^^^ 



Changes in Staff 3*8 



