1923.1 PUBLIC DOCUMENT — No. 31. 5a 



Bulletins. 



No. 207. Injury to Foliage by Arsenical Sprays. I. The Lead Arsenates, by H. T. 



Fernald and A. I. Bourne; 20 pages. 

 No. 208. Leaf Characters of Apple Varieties, by J. K. Shaw; 12 pages. 

 No. 209. Experiments in Soil Management and Fertilization of Orchards, l)y J. K. 



Shaw; 28 pages. 

 No. 210. Injury to Foliage by Arsenical Sprays. II. Calcium Arsenates and Arsenites. 



III. Notes on Other Arsenicals, by H. T. Fernald and A. I. Bourne; 10 pages. 

 No. 211. Changes in Egg Production in the Station Flock, by H. D. Goodale and 



Ruby Sanborn; 28 pages. 

 No. 212. A Thirty-Year Fertilizer Test, by Sidney B. Haskell; 32 pages. 



BullUins, Technical Scries. 



No. 5. Concerning the Diagnosis of Bacterium pullorum Infection in the Domestic 

 Fowl, by George Edward Gage; 28 pages. 



Bulletins, Popular Edition. 

 No. 211. Changes in Egg Production in the Station Flock, by H. D. Goodale; 8 pages. 



Bulletins, Control Series. 



No. 18. Control of Bacillary White Diarrhoea, 1920-1921, by G. E. Gage, 8 pages. 

 No. 19. Inspection of Commercial Feedstuffs, by Philip H. Smith and Ethel M. 



Bradley; 34 pages. 

 No. 20. Inspection of Commercial Fertilizers, by H. D. Haskins, L. S. Walker, and 



R. W. Swift; 42 pages. 

 No. 21. Inspection of Lime Products Used in Agriculture, by H. D. Haskins, L. S. 



Walker and R. W. Swift; 8 pages. 

 No. 22. Control of Bacillary White Diarrhoea, 1921-1922, by G. E. Gage and O. S. 



Flint; 8 pages. 



Meteorological Reports. 

 Nos. 397-408, inclusive, 4 pages each. 



Control Activities, 



Through State law, four different control activities are now^ being operated 

 and administered by the Station : these being the feed and fertilizer control laws, 

 the law for the inspection of dairy glassware, and the poultry disease elimination 

 law. Reports on the first two activities have been published in Control Bulletins 

 Nos. 19, 20 and 21, and that of the poultry disease elimination law in Control 

 Bulletin No. 22. Since these reports give full details of the operations in 1922, 

 no further mention need be made in this place. The activities under the law for 

 the inspection of dairy glassware are similar to those of preceding years. 



In addition to the above, the Station also administers the advanced registry 

 testing work for several different breed associations. This is operated as a trust 

 fund, the work being billed at cost plus ten per cent to allow for overhead. This 

 fund now pays the salary of a full-time assistant, who cares for the routing of the 

 men, keeping of the records, and other work of this nature. The Experiment 

 Station acts only as a neutral, disinterested party for determining certain stated 

 facts. It guarantees nothing other than the accuracy of records taken under its 

 immediate supervision. 



Extension Phases of Station Work. 



As in previous years the time of several of the Station men, available for 

 research work, is seriously diminished by calls for extension service. This is par- 

 ticularly the case in the Department of Veterinarj^ Science, which in the spring 

 of the year receives numerous calls for examination of dead chicks and dead fowl. 

 In the Department of Botany many calls come for diagnostic service on plant 



