COMMERCIAL STORAGE OF FRUITS AND VEGETABLES 39 



(24) Shapovalov, M., and Link, G. K. K. 



1924. control of potato-tuber diseases. U.S. Dept Agr. Farmers' Bui. 



1367, 38 p., illus. 



(25) Siebel, J. E. 



1918. compend of mechanical refrigeration and engineering ; A COM- 

 PREHENSIVE DIGEST OF GENERAL ENGINEERING AND THERMODYNAM- 

 ICS FOR THE PRACTICAL USE OF ICE MANUFACTURERS, COLD-STORAGE 



men, contractors. . . Ed. 9, 571 p., illus. Chicago. 



(26) Stuart, W. 



1930. potato storage and storage houses. U.S. Dept. Agr. Farmers' 



Bui. 847, 22 p., illus. (Revised.) 



(27) Thompson, H. C. 



1917. celery storage experiments. U.S. Dept. Agr. Bui. 579, 26 p., 

 illus. 



(28) 



1925. storage of sweet potatoes. U.S. Dept. Agr. Farmers' Bui. 1442. 



22 p., illus. 



(29) Walker, J. C. 



1931. onion diseases and their control. U.S. Dept. Agr. Farmers' 



Bui. 1060, 25 p., illus. (Revised.) 



(30) Whiteman, T. M. 



1932. commercial forcing of lilies-of-the-v alley. U.S. Dept. Agr. 



Circ. 215, 20 p., illus. 



(31) Wright, R. C, Pe^tzer, W. T., Whiteman, T. M., and Rose, D. H. 



1931. EFFECT OF VARIOUS TEMPERATURES ON THE STORAGE AND RIPENING OF 



tomatoes. U.S. Dept. Agr. Tech. Bui. 268, 35 p., illus. 



(32) and Taylor, G. F. 



1929. the freezing temperatures of some FRUITS, VEGETABLES, AND CUT 

 flowers. U.S. Dept. Agr. Bui. 1133, 8 p. (Revised.) 



