12a - P.D. 31. 



Poultry Husbandry. 



Studies in Heredity. 



Poultry 1. Broodiness in poultry. Professor Hays. 

 Poultry 2. Breeding poultry for egg production. Professor Hays. 

 Poultry 3. A genetic study of Rhode Island Red color. Professor Hays. 

 Poultry 4. Determination of genetic laws governing results in inbreeding of 

 poultry. Professor Hays. 



Poultry 5. The hatchability of eggs. Professor Hays. 



Poultry Diseases. 



Veterinary Science 5. Bacteriophagic specificity with special reference to B. 

 pullorum infection and therapeusis. Assistant Professor Pyle. 



Agricultural Economics. 



Agricultural Economics 1. Local balance of trade in farm crops. Assistant Pro- 

 fessor Jefferson. 



Agricultural Economics 2. Methods and cost of distribution of onions. Assist- 

 ant Professor Jefferson. 



Agricultural Economics 7. Boston food supply study. Professor McFall. 



Meteorological Studies. 



Entomology 11. Study of area of the late frosts as shown by insect distribution. 

 Professor Fernald. 



Cranberry 3. Weather observations with reference to frost prediction. Professor 

 Franklin. 



CONTROL AND REGULATIVE SERVICE. 



In addition to the conduct of agricultural research, the Station administers the 

 State feed and fertilizer control laws, the law for the inspection of dairy glass- 

 ware, and the poultr}' disease elimination law; and likewise, in co-operation with 

 the different breed associations, conducts tests for advanced registry. With the 

 single exception of the law relating to the elimination of certain poultry diseases, 

 all of these control functions are self-supporting, are administered by separate 

 staffs, and do not represent a drain on the research funds of the Experiment Sta- 

 tion. Full report of the poultry disease elimination work is contained in Control 

 Bulletin No. 23, published in September, 1923. The report on commercial feed- 

 stuffs is listed as Control Bulletin No. 24; that on fertilizers as Nos. 25 and 26, 

 the last referring to lime products used in agriculture. In addition these different 

 departments perform a large amount of analytical service for the Experiment 

 Station as well as for certain agricultural organizations and others. Wherever 

 service of this kind is for other than public or community benefit, a fee is charged. 



In furtherance of the dairy law, so-called, 81 certificates of proficiency have 

 been awarded, and inspections of apparatus and machinery made in 106 different 

 places. Two machines were condemned and minor repairs ordered on 17. Rein- 

 spections were necessary in 6 places. Six thousand, one hundred and twenty-five 

 pieces of glassware were calibrated, of which only 18 were condemned. The very 

 low ratio of pieces of apparatus condemned to the total inspected demonstrates 

 most strikingly the value of a control of this kind. In the first year of full operation 

 under this law, 291 pieces of glassware, 5.77 per cent of the whole number inspected, 

 were condemned. 



The report on the advanced registry testing of dairy cows follows : 



