range of the tree selected for study, in this ease the white pine. and 

 must cover a long period of years .After this work has "been done and 

 only then can we he sure of our ground. 



2he principal factors which may influence the production of 

 seed may he outlined as follows :- 



I^ Influences within the tree itself. 



1. Storage of surplus food to he used in seed production. 



and pistillate 

 E. Years staminate. flowers are produced 



3. Photosynthesis and other physiological actions of the 



tree. 



lI.Ex'ternal influences. 



1. Meteorological conditions. 



a. Maximum and minimum temperatures. 



h. Latest and earliest killing frosts. 



c. Prevailing winds. 



d. Effect of sudden changes. 



e .Precipitation. 



2. Soil. 



a. Character. 



h. Drainage. 



c.Availahle water. 



3. Expo sure. 



4. Effect of light and shade. 



It has heen heyond the scope of this prohlera to take up all 



these points hut they have suggested themselves during its pursuance. 



This work has heen confined, so far as seed productionjis concerned, 



to a survey of the woodlots on the Cornell University i'arm, recording 



seed crop conditions duringfthe fall of 1914, and the collection of such 



meteorological data/as is available. 



The study of seed distribution is more simple^since only a 



