X. H. Agr. Experiment Station 



[Bulletin 313 



tion Service, which is being expanded to cover the public relation- 

 ships of all departments of the university. In this new assignment 

 he will look forward to the same hearty cooperation in all projects 

 designed for the public welfare as he has received in the past. 



Publications 



Results of Seed Tests, 1937 



Eggs under the Hammer 



Inspection of Commercial Fertilizers, 

 1937 



Dairy Herd Replacements in Southern 

 New Hampshire 



Electric Brooding of Chicks. 

 II. Heat Requirements 



Annual Report of Experiment Station, 

 1937 



Legume and Grass Silage 



Experiments with Grass Hay 



Transportation of New Hampshire Milk, 

 Part I 



Evaluation of Varieties of Peaches in 

 the Northeast 



Chemical Studies on Chicken Blood 



Prevalence and Classification of Haemo- 

 lytic Streptococci in Pasteurized Milk 



A Freezing Apparatus in Which Change 

 of Temperature is Automatically Con- 

 trolled 



Case History of Two Winter-injured 

 Baldwin Trees 



The Occurrence of Seedless Apples as a 

 Result of Frost 



Photoelectric Measurements of Apple 

 Leaf Areas 



Availability to Apple Trees of Potas- 

 sium Applied on the Surface of Sod 

 Mulch Orchards in New Hampshire 



Confinement versus Open Range for 

 Bronze Turkey Breeders 

 Halaiued Metabolism Is Important to Plant (irowth 



During the past several years T. G. Phillips, T. O. Smith and J. R. 

 Hepler have been carrying on exi)orinu'nts to study the effect of 

 l)otassium deliciency on the metalK)lism of plants. A second techni- 

 cal bulletin containing their results up to the end of 1938 was made 

 ready for publication under the title, "Some Effects of Potassium 

 and Nitrogen on the Composition of the Tomato Plant." 



Tomato plants were grown in sand at two levels of nitrogen supply, 

 with and without added potassium, until the first symptoms of potas- 

 sium deficiency appeared. Plants supi)lied with a low level of nitro- 

 gen were stunted; l)ut when the i)otassium was also deficient, they 

 were not so badly stunted as when the potassium was availalde in 

 the usual amounts. 



These results tend to confirm the idea that the balance between 



Station Bulletin 299 

 Station Bulletin 300 

 Station Bulletin 301 



Station Bulletin 302 



Station Bulletin 303 



Station Bulletin 304 



Station Bulletin 305 

 Station Bulletin 306 

 Station Bulletin 307 



Station Circular 54 



Technical Bulletin 69 

 Technical Bulletin 70 



Scientific Contribution 60 



Scientific Contribution 61 

 Scientific Contribution 62 

 Scientific Contribution 63 

 Scientific Contribution 64 



Scientific Contribution 65 



