528 ANNUAL REPORTS OF DEPARTMENT OF AGRICULTURE. 



tional Implement and Vehicle Association and the American Society 

 of Agricultural Engineers. Tlie standards for cow mangers that had 

 been developed by representatives of these organizations and engi- 

 neers of the division in cooperation were later accepted as the oflicnil 

 standards by both organizations. 



The development of apparatus for dusting cotton plants for the boll 

 weevil, which had previously been designed, was continued in co- 

 operation with the Bureau of Entomology. The designs were per- 

 fected, public patents granted and efforts made to bring about the 

 commercial production of machines. In cooperation with the Bureau 

 of Entomology there was prepared Farmers' Bulletin No. 1098, 

 Dusting Machinery for Cotton Boll Weevil Control. 



The work of the Secretary's committee on farm-equipment con- 

 trol, which was turned over to the division in the spring of 1919, was 

 continued. A few licenses were issued to applicants. 



Little interest was shown by thrashers and farmers in the grain- 

 conservation work, taken over by the division upon the termination of 

 the Food Administration's war activities. But one request for as- 

 sistance in conducting "thrasher schools" was received. It was com- 

 plied with. 



Papers on "Special features of tractor-drawn implements" and the 

 "Care and operation of separators" were prepared and i-ead before 

 the Farmers' Congress at Harrisburg, Pa., and the Brotherhood of 

 New York Thrashermen at Rochester, N. Y., respectively. 



A member of the staff assisted in the program of a " tractor school 

 and demonstration" at Spartanburg, N. C. 



Light and Power in Farm Homes was prepared for the yearbook 

 and later published as a separate. Data was obtained for a publica- 

 tion describing methods adopted and the results obtained by two 

 farmers in the utilization of small streams in generating electricity 

 for their farms. A study was made of the sources of electrical energy 

 available to farmers and the methods of securing current. The mate- 

 rial obtained will be included later in a publication on the subject. 



A Farmers' Bulletin on One-Register Furnaces was sent to press, 

 also a bulletin on Proper and Economical Farm Home Heating. 



In response to requests there were issued during the year 7,794 

 sets of plans for farm buildings and their appurtenances. In answer 

 to requests for assistance in the solution of agricultural engineering 

 problems, numerous data, sketches, and short articles on many sub- 

 jects were prepared. 



The Information Series used in connection with replies to requests 

 for assistance was amplified by notes relating to the use of cold-water 

 paints, domestic refrigeration, firms manufacturing or selling farm 

 electric-lighting plants, and a discussion of round versus rectangular 

 barns. 



At the end of the fiscal year the direction of the division of rm^al 

 engineering was transferred from Mr. E.- B. McCormick to Mr. S. H. 

 McCrory, who has had charge of the drainage work of the bureau for 

 a number of years. Mr. McCormick will take charge of the newly 

 organized equipment division which has been formed to look after 

 the large amount of road-building machinery, automobiles, motor 

 trucks, and other equipment transferred to the bureau by the War 

 Department. 



