CONTENTS. 



Page. 



Economic importance of the hickories 7 



The annual consumption 7 



Industries that use hickory 7 



Exports 9 



The hickory supply 9 



Present stand 9 



Ownership of land 10 



Lumbering 10 



Stumpage prices '. 11 



Log rules 11 



Waste 12 



The tree and its forms 13 



The pecan hickories 16 



Pecan 16 



Water hickory 16 



Nutmeg hickory 17 



Bitternut 17 



The true hickories 18 



Shagbark 18 



Big shellbark 19 



Pignut : 20 



Mockernut 21 



Range and distribution 22 



Soil and moisture requirements 25 



Tolerance 26 



Reproduction 26 



Growth ! 29 



Length of life 32 



Susceptibility to injuries 32 



Volume and yield 33 



Volume 33 



Yield 40 



The wood and its mechanical properties 41 



Hickory tests 42 



Description of material 42 



Care of material 44 



Methods of test 44 



Hickory wood as compared with others . 45 



Factors that affect strength 46 



Moisture 46 



Weight 47 



Rate of growth 48 



Heartwood and sapwood 50 



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