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LITERATURE CITED 
ALLEN, FEF. W. 
1939. INFLUENCE OF CARBON DIOXIDE IN LENGTHENING THE LIFE OF BARTLETT 
PEARS. Amer. Soc. Hort. Sci: Proc. 37: 473-478. 
GERHARDT, Fisk, and EZELL, Boyce, D. : 
1941. PHYSIOLOGICAL INVESTIGATIONS ON FALL AND WINTER PEARS IN THE 
PACIFIC NORTHWEST. U.S. Dept. Agr. Tech. Bull. 759, 67 pp., illus. 
Kipp, F., and WEST, C. 
1938. THE GAS-STORAGE OF ENGLISH GROWN WILLIAMS BON CRETIEN PEARS. 
Dept. Sci. and Ind. Res. Rept. Food Iny. Board 1937, pp. 93-97, 
illus. 
MatTtus, G. E. 
1950. RATE OF RESPIRATION AND VOLATILE PRODUCTION OF BARTLETT PEARS FOL- 
LOWING REMOVAL FROM AIR AND CONTROLLED ATMOSPHERE STORAGE. 
Amer. Soc. Hort. Sei. Proce. 55: 199-211, illus. 
TINDALE, G. B., Trout, 8S. A., and HUELIN, F. EH. 
1938. INVESTIGATIONS ON THE STORAGE, RIPENING AND RESPIRATION OF 
PEARS. Jour. Dept. Agr. (Victoria) 36: 1-84, illus. 
Trout, 8. A., HALL, HE. G., and SYKEs, S. M. 
1953. EFFECT OF SKIN COATINGS ON THE BEHAVIOR OF APPLES IN STORAGE. 
I. PHYSIOLOGICAL AND GENERAL INVESTIGATIONS. Australian Jour. 
Agr. Res. 4: 57-81, illus. 
ULRicH, R., and MIMAULT, J. 
1952. EVOLUTION OF PECTIC COMPOUNDS DURING RIPENING OF PARAFFINED 
PEARS. Fruit (Paris) 7: 273. 
WASHINGTON STATE APPLE COMMISSION. 
1953. APPLE PRODUCTION IN WASHINGTON. Apple Research Digest, No. 77. 
(May.) 
U. S. GOVERNMENT PRINTING OFFICE: 1955 
