Supplemental Vitamin D for Dairy Cows 29 



The Relation of Trace Minerals to Vitamin Synthesis in the Rumen of 



Dairy Animals 29-30 



Studies on Bovine Mastitis 30 



t 



ENTOMOLOGY 



Penetration and Toxicity of Contact Insecticides 30-31 



Insect Record 31-32 



Apple Maggot 32 



Studies of Insects Affecting Spruces 32 



Proposed Study of Spray and Dust Deposits 32-33 



FORESTRY 



Sugar Maple Propagation 33 



Characteristics of Sap Flow 33-34 



Reproduction Studies 34 



White Pine Stands 34 



Devices and Implements Useful in Farm Logging 34-35 



FRUITS 



Leaf Scorch in Deciduous Fruit Plantings 35 



Body Stocks and Understocks for New Hampshire Apples 35 



Blueberry Culture 36 



Breeding Work and Varietal Tests 36 



Cultural Practices '. 36-37 



ORNAMENTALS 



Chrysanthemum Variety Tests 37 



Lilac Culture 37 



PASTURES 



Producing the Full Roughage Requirements on New Hampshire Dairy Farms 



with Special Reference to Pastures 37-38 



The Use of Herbicides in New Hampshire with Particular Reference to 



Pastures 38-39 



Pasture Management 39-40 



V 



PLANT PATHOLOGY 



Factors Influencing the Development or Suppression of Leaf Roll Symptoms 



in Potato Foliage in the Greenhouse 40 



The Control of Tomato Diseases 40-41 



Plant Disease Investigations 41 



Testing New Pesticides 41-42 



