ABBREVIATIONS AND SYMBOLS. 



For all characteristics in general three classes are distinguished by 

 numbers, as follows: 



1, Low, small, narrow, restricted, little. 



2, Medium, moderate. 



3, High, large, broad, extensive, great. 



Size 



1 Small 50 to 100 ft. high. 

 2, Medium 100 to 150 ft. high. 

 3, Large over 150 ft. high. 



Growth- 



Rapidity 



1, Slow. 



Life ............ 1, Short. 



Root System 



1, Tracing 

 1, Shallow. 



Bole- 



Taper ........... 1, Little. 



2, Medium. 

 2, Medium. 



2, Heart. 

 2, Medium. 



3, Rapid. 

 3, Long. 



3, Tap. 

 3, Deep. 



2, Medium. 3, Great. 



Crown 



1, Monopodial. 2, Medium. 



3, 



Tolerance 



1, Intolerant. 2, Medium. 3, 



Wood- 



Strength ........ 1, Small. 2, Medium. 



Weight ......... 1, Small. 2, Medium. 



Durability ....... 1, Small. 2, Medium. 



Reproduction. 



Seed Production. . 1, Meagre. 2, Medium. 



Germination ..... 1, Low. 2, Medium. 



Vitality ......... 1, Low. 2, Medium. 



Seedlings ...... 1, Tender. 2, Medium. 



Spreading. 

 Tolerant. 



3, Great. 

 3, Great. 

 3, Great. 



3, Prolific. 

 3, High. 

 3, High. 

 3, Hardy. 



56 



