20 



N. H. AGR. EXPERIMENT STATION. 



[Bulletin 192 



Effect of Reduced Oxygen on Loss of Weight of Potatoes Stored at 

 A Mean Temperature of 9.39° C. 



PUBLICATIONS. 



Butler, O. The cuprammonium washes, their preparation, biological prop- 

 erties, and apphcation. Phytopathology 7: 235-268, 1917. 



Butler, O. R., Smith, T. O., and Curry, B. E. Physiology of the Apple: 

 Distribution of food materials in the tree at different periods of growth. 

 New Hampshire Agr. Expt. Sta. Tech. Bui. IS: 21 pp., 1917. 



Butler, O. On the preservation of phytopathological specimens in their 

 natural colors. Phytopathology 8: 66-68, 1918. 



Treatment of loose smut of oats. New Hampshire Expt. Sta. 



Extension Press Bui. 99, 1918. 



What insecticide shall the potato grower use in Bordeaux mixture? 



New Hampshii-e Expt. Sta. Extension Press Bui. 109, 1918. 



REPORT OF THE DEPARTMENT OF 

 CHEMISTRY. 



t. o. smith. 



The regular annual inspections of commercial feeding-stuffs and commercial 

 fertilizers were made for the State Board of Agriculture. Two hundred eighty- 

 eight samples of feeding-stuffs were analyzed and reported in Station Bulletin 

 No. 187. One hundred forty-seven samples of fertilizers were analyzed and 

 reported in Station Bulletin No. 189. 



Considerable chemical work was also done for the people of the State in 

 ■answer to inquiries requiring the analysis of feeds, fertilizers, soils, spray 

 ■materials and agricultural products. 



ADAMS PROJECTS. 

 Physiology of the Apple. 



The co-operative project with the Department of Botany on the Phj^siology 

 ■of the Apple has been completed and published as Technical Bulletin No. 13. 

 The following conclusions regarding the distribution of food materials in the 

 •apple tree at different periods of vegetation are based upon the chemical deter- 

 mination of the percentage of saccharose, reducing sugars, starch, ether extract, 

 ash, nitrogen, phosphorus and potassium present in the summer's growth, one- 

 year-old branches, two-year-old branches, three-year-old branches, four- 

 .year-old branches, five-year-old branches, trunk, large roots and small roots 



