Jan. 1922] annual report. 29 



he writes, "I hatched out 1900 chickens from untested stock, and raised about 

 250. This season from tested stock I hatched 1201, and I have a few over 

 1100 nice six weeks' old chickens." Another poultry farm reports a drop 

 from 55% to 17% in the mortality of its chicks. 



The project has been self-supporting since the income from the testing 

 pays all the expenses. 



Service Work. 



Numerous requests for the analysis of various materials and for technical 

 advice have come to the chemical laboratory during the past year. Over 

 one hundred and fifty samples of materials have been analyzed including 

 commercial feedstuffs, fertilizer, insecticides and fungicides, lime, wood 

 ashes, soils for lime requirement, etc. When the nature of the work is such 

 that it is of general interest to the community or state at large, the Station 

 has felt justified in doing the work. 



Publications. 



The constant growth of the Station mailing list together with the high 

 cost of printing has made a change in the distribution of our publications 

 seem advisable. Formerly all of the regular bulletins were sent to every 

 one who requested that his name be placed on the mailing list; but the in- 

 crease in this list to 22,000 names placed a heavy burden upon the Station 

 funds, and made it impossible to publish all of the manuscripts which it 

 was desirable to bring out. Since the issuing of bulletins is the principal 

 means of carr>'ing to pubHc attention the results accomplished, it is very 

 important that pubUcations should not be shelved for lack of funds. An 

 economy which seems to work satisfactorily was started at the close of the 

 last fiscal year by the adoption of the following policy: Postal cards an- 

 nouncing new bulletins are now sent to every one whose name is on the mail- 

 ing list, with the request that desired bulletins be checked and the card re- 

 turned to the Station office. By this means the mailing of bulletins is re- 

 stricted to instances where they are actually wanted, and the financial sav- 

 ing under this system has proved sufficient to make the printing of more 

 bulletins possible. 



During the past year the following publications were issued: 

 Bulletins 



195 — Inspection of Commercial Feeding Stuffs. 

 196 — Inspection of Commercial Fertilizers. 

 197— Results of Seed Tests— 1920. 

 198 — Report of Experiment Station Work, 



Biennium, 1918-20. 

 199 — Digging up Facts for New Hampshii-e Farms. 

 Scientific Contributions 



17 — Earless Sheep. 



18 — Relation of Potassium to Growth of Plants. 

 Technical Bulletins 



17 — Experiments with Contact Sprays for Leaf Miners. 

 18 — Effects of Shading Some Horticultural Plants. 



Another method of getting the results of Station work into public knowl- 

 edge has been pursued in the newspaper notices. Brief summaries in news 



