L 



Apgar, Austin Craig 



Trees of the northern 

 United States: their study, 

 description and determinS-' 

 tion for the use of schools 

 and private students. 



UC SOUTHERN REGIONAL LIBRARY 



A 000550710 8 



AGRICULTURAL LIBRARY 



UNIVLRSITY OF CALIFOA.xlA 



CITRUS RESEARCH CENTER AND 



AGRICULTURAL EXPERIMENT STATION 



RIVERSIDE, CALIFORNIA 



