P.D. 31 13a 



15. A study of the factors influencing the efficiencj^ of nicotine in dusts and spray 

 mixtures. Assistant Professor H. N. Worthley. Discontinued on account of the 

 resignation of Professor Worthle3^ Manuscript submitted. 

 Farm Managevient. 



1. Investigation of farm organization and labor efficiency on Massachusetts 

 farms. Professor J. A. Foord. Discontinued. 



Microbiology. 



2. Soil fertilit}'' as influenced by micro-organisms in their relation to the presence 

 and disappearance of organic matter. Assistant Professor C. H. Workman. 

 Superseded bj^ Project 4. A report of some of the results was pubUshed as Scien- 

 tific Contribution 37, "Biological Investigation of Peat." 



Pomology. 



7. Test of fertilizers in a sod mulch orchard. Research Professor J. K. Shaw. 

 Discontinued on account of injury to orchard. 



15. Orchard fertiUzation. Research Professor J. K. Shaw. Discontinued. 

 A report of the fertilizer studies in this orchard was published several years ago 

 in Bulletin 209. 



20. Test of fertilizers for pears. Research Professor J. K. Shaw. Discontinued 

 on account of attack of blight. 



21. Study of fruit harvesting and storage. G. J. Raleigh. Completed, results 

 published in U. S. D. A. Department Bulletin 1406. 



Veterinary Science. 



0. The therapeutic efficiency of avian diphtheria, roup, or bird pox vaccines. 

 Assistant Research Professor N . J. Pyle. Completed, results published in Technical 

 Bulletin 10, "The Therapeutic Efficiency of Avian Diphtheria, Roup, and Bird 

 Pox Vaccines and Bacterins." 



Publications, 1925-1926. 



During the period covered by this report, and as a measure of economy which 

 leads also to efficiency in distribution of material, many of the reports of the 

 various projects have been published through technical and scientific journals, 

 rather than in the regular bulletin series of the Experiment Station. With the 

 development of the Extension Ser\'ice, the primary audience to which results of 

 research work in agricultural science are presented consists of teachers and ex- 

 tension specialists rather than of actual farmers. It is believed that this change 

 in no way decreases the service of the Station to its main constituents, the 

 farmers of the State. Furthermore, the definite preparation of manuscript for 

 a restricted audience leads to more efficient preparation of manuscript than is 

 possible when the audience consists of diverse groups. The following shows the 

 publications of the years in question : 



Annual Report. 

 Thirty-seventh annual report with index. 



Bulletins. 



Iso. 221 . The Smut Disease of Onions, by P. J. Anderson and A. Vincent Osmun. 



No. 222. Experiments on the Control of Apple Scab and Black Rot and Spray 

 Injury in 1924, by W. L. Doran. 



No. 223. Milk Substitutes ua the Rearing of Young Calves, b}' J. B. Lindsey and 

 J. G. Archibald. 



No. 224. The Costs of Marketing the Apple Crop of 1923, by Lorian P. Jefferson. 



No. 225. Yellow Pickle in Greenhouse Cucumbers, bj- Victor A. Tiedjens. 



No. 226. Research Service to the Massachusetts Apple Industry: Progress 

 Reports, by Lorian P. Jefferson and Hubert W. Yount, J. K. Shaw, 

 William Doran, J. S. Bailey and A. I. Bourne. 



No. 227. The Connecticut Valley Onion Industry: Progress Reports of Experi- 

 mental Work, by Lorian P. Jefferson, A. B. Beaumont and 0. E. 

 Street, A. Vincent Osmun and A. I. Bourne. 



No. 228. An Economic Study of the Massachusetts Apple Industry, by Hubert 

 W. Yount and Lorian P. Jefferson. 



