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SOILS 51 



Methods for Controlling Erosion on New Hampshire Potato Farms 51 



The Influence of Soil Texture, Soil A'loisture, and Soil Aeration on the 



Growth of Plants 51 



\'EGETABLE PRODUCTION 52 



Factors Affecting the Storage of Squash 52 



\'ariety Trials in Northern New Hampshire 52 



\'ariety Trials at Durham 53 



Vegetable Breeding 53 



Treatment of Seeds with Hormones and Hormone-like Preparations 54 



NUTRITION - VITAMINS - METABOLISM 55 



Factors Affecting the Nutritive Value of New Hampshire-Grown Fruits 



and Vegetables 55 



I. The Effects of Quick-freezing on the A^itamin Content of Straw- 

 berries •■ 55 



II. The Effects of Quick-freezing on the A^itamin Content of Red Rasp- 

 berries ^ 57 



III. The Effects of Canning and Quick-freezing on the \'itamin Con- 

 tent of Blueberries 58 



IV. The Effects of Freezing and Dehydration Upon the Carotene Con- 

 tent of Blue Hubbard Squash < 59 



The Culinary and Preserving Qualities of Fruits and A'egetables Grown 



in New Hampshire 60 



Nutrition Studies with Lactating Cows 61 



Effect of A'itamin A on the Utilization of Energy and Protein by Calves 62 



Metabolism of the Horse 63 



STATE SER\'ICE ., 63 



Inspection of Fertilizers and Feeding Stuffs and Soil Testing 62i 



Seed Inspection 64 



Potato Seed Certification , 65 



Autopsies at Poultry Laboratory 65 



Pullorum Testing 65 



Manufacture and Distribution of Fowl Pox Vaccine 66 



Manufacture and Distribution of Fowl Larj-ngotracheitis Vaccine 66 



National Poultry Improvement Plan 66 



Dairv Bacteria and Mastitis Testing 67 



