4 N. H. Agr. Experiment Station [Bulletin 262 



Mr. Lowry was still a young man and had been a most conscientious 

 and reliable investigator. His place has been taken by James G. Conk- 

 lin, B. Sc., Connecticut Agricultural College, M. Sc. University of New 

 Hampshire and for the last two years a graduate student at Ohio State 

 University. Otherwise the staff has remained intact during the year 

 except for the resignations of H. 0. Stuart, assistant poultryman and 

 Maurice Bickford, assistant in animal nutrition. A. E. Tepper, poultry 

 certification inspector, has been appointed in Mr. Stuart's place; and 

 Frank Reed, who has completed the field work in economic poultry 

 farm studies, will take charge of the certification and Record of Per- 

 formance program. Harry Murray completed his graduate work in 

 the Botany department, and his place has been taken by Russell Bissey. 

 Clarence Winchester and Lloyd E. Washburn have been appointed 

 graduate assistants in animal husbandry ; and S. J. Fisher as graduate 

 assistant in agricultural chemistry. 



New publications were issued during the year as follows : 

 Bulletin 252— Results of Seed Tests 1930. 



253 — Inspection of Commercial Feeding Stuffs, 1930. 

 254: — Inspection of Commercial Fertilizers, 1930. 

 255 — Land Survey of the Town of Durham, New Hampshire. 

 256 — Agricultural Research in New Hampshire, 1930. 

 257 — Studies in Economics of Apple Orcharding — Part I, An 

 Apple Enterprise Study — Costs and Management. 

 Circular 35 — Top-Dressing Old Pastures. 



36 — Remodelling Farm House Cellars for the Storage of 



Potatoes. 

 37 — Consumer Preferences for Potatoes. 

 Technical Bulletin 44 — The Relation of Hydrophilic Colloids to Hardi- 

 ness in the Apple as Shown by the Dye Ad- 

 sorption Test. 

 45— The Heat Production of Sheep Under Vary- 

 ing Conditions. 

 46 — A Numerical Rating for the Contact Perform- 

 ance of a Spray Material. 

 47 — Some Results of Inbreeding on Fecundity and 

 on Growth in Sheep. 

 Scientific Contribution 28 — Maintaining Cultures of Mosquito Larvae 



29— Pollination Studies with the Mcintosh 

 Apples in New Hampshire. 



Fruit Farm Studies 



That portion of the economic study of fruii farms relating to costs 

 and management from an enterprise point of view was completed dur- 

 ing the year by H. C. Woodworth and G. F. Potter, and the results pub- 

 lished in Bulletin 257. 



Briefly, it was noted that on account of skill required, on account of 

 expensive spray equipment and spray material and on account of the 

 short but very definite spray periods, spraying is the most important 

 operation from the management angle. Good yields are important in 



