334 PRINCIPLES UNDERLYING THE STUDY OF GROWTH 



References 



Climatic Cycles and Tree Growth, A. E. Douglass, Carnegie Institute Pub. No. 289. 

 Tree Growth and Climate in the United States. K. W. Woodward. Journal of 



Forestry, Vol. XV, 1917, p. 520. 

 The Climatic Factor as Illustrated in Arid America, Ellsworth Huntington, Carnegie 



Institution of Washington, D. C, 1914J Chapter XII. 

 Density of Stand and Rate of Growth of Arizona Yellow Pine as Influenced by 



Climatic Conditions, Forrest Shreve, Journal of Forestry, Vol. XV., 1917, p. 



695. 



