40 



WOOD AND FOREST. 



THE STRUCTURE OF WOOD. 



REFERENCES : * 



Roth, Forest Bull. No. 10, pp. 11- 



23. 



Boulger, pp. 1-39. 

 Sickles, pp. 11-20. 

 Pinchot, Forest Bull. No. 24, I, pp. 



11-24. 



Keeler, pp. 514-517. 

 Curtis, pp. 62-85. 

 Woodcraft, 15: 3, p. 90. 



Bitting, Wood Craft, 5: 76, 106, 

 144, 172, (June-Sept. 1906). 



Ward, pp. 1-38. 



Encyc. Brit., llth Ed., "Plants," 

 p. 741. 



Strasburger, pp. 120-144 and Part 

 II, Sec. II. 



Snow, pp. 7-9, 183. 



general bibliography, see p. 4. 



