4 N. H. Ac;r. Experiment Station [Bulletin 256 



Circular 30 — Vaccination for Fowl Pox. 



31 — The Horse Situation in New Hampshire. 



32 — Surface Areas of Sheep. 



33 — Hopper-Feeding Grain. 



34 — Electric Laundry Equipment on the Farm. 



Technical Bulletin 39 — Surface Tension, Surface Activity, and Wetting 



Ability as Factors in the Performance of Con- 

 tact Insecticides. 



40 — Lime Sulphur in Relation to San Jose and Oys- 

 ter Shell Scales. 



41 — Some Effects of Defloration on Fruit Spur Com- 

 position and Fruit Bud Formation in the Olden- 

 burg Apple. 



42 — Composition and Fruit Bud Formation in Non- 

 Bearing Spurs of the Baldwin Apple. 



43— The Energy Metabolism of Sheep. 



Scientific Contribution 24 — Effect of Size of Seed Used in Commercial 



Planting on the Incidence of Leaf Roll and 



Mosaic in Potatoes. 

 25 — Experiments on the Control of Mustard. 

 26 — The Period of Blossom Bud Differentiation 



in Baldwin and Mcintosh Apples. 

 27 — Effect on Plants of Cyanide Fumigation 



Following Spraying with Bordeaux Mixture. 



Press Bulletin 2 — Trapping Codling Moths to Determine When to Spray. 



There were few changes in personnel during the year. R. B. Dear- 

 born was appointed assistant in vegetable gardening; A. E. Tepper, as- 

 sistant poultryman in charge of certification work; F. E. Perkins, edi- 

 torial assistant; and Samuel Hoitt, Neil Stuart, S. J. Fisher and L. S. 

 Groves as graduate assistants. 



Pastures Respond to Treatment 



That the better areas of permanent pasture in New Hampshire will 

 respond profitably to fertilizer treatments is shown by the results from 

 a series of plots in 22 pastures of the state where studies were conducted 

 by F. S. Prince, P. T. Blood, and G. P. Percival. 



Even though poverty grass and other undesirable plants may be pres- 

 ent, supplying plant, food tended quickly to stimulate Kentucky blue 

 grass, bent ,ur;isses mid, on the heavier soil types, white Dutch clover, 

 crowding out the undesirable species. 



On the lighter soil types where there is little or no Dutch clover, the 

 results indicated that it is better to start with an application of com- 

 plete fertilizer in sufficient quantity to take care of the nitrogen re- 

 quirements of the sod for that season and of the phosphorus and potash 

 requirements for three or four years, following this up each spring with 

 an application of 200 or 300 pounds of nitrate of soda, or its equivalent, 

 per acre. 



This means an initial application equivalent to from 300-500 pounds 

 of a 10-16-14 or the same quantity of an 8-16-16 fertilizer per acre. 



