1921} STRAUSBAUGH—DORMANCY AND HARDINESS 357 
moisture relations in forms differing in hardiness may furnish the 
fruit breeder with a criterion, correlated with hardiness, which will 
hasten markedly the final selections. 
This investigation was carried on in the laboratory of Dr. 
M. J. Dorsey, in charge of the Section of Fruit Breeding, Depart- 
ment of Horticulture, University of Minnesota. The writer is 
very grateful for all the favors accorded him, and especially for 
the constant aid and valuable suggestions received from Dr. 
Dorsey. I also wish to acknowledge the helpful criticism and 
advice given by Dr. Soputa H. Eckerson, Dr. W1LL1AmM CROCKER, 
Dr. J. J: Wittaman, and Dr. L. I. Knicut. I am also greatly . 
indebted to Messrs J. W. BusHNELL, J. H. BEaumonrt, and A. C. 
HitpretH for assistance in collecting material and data. 
COLLEGE OF WoosTER 
Wooster, OunI0 
LITERATURE CITED 
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