PLATE III 



11. Red Oak. 8a. (Vs) 



12. Scarlet Oak. 83. (Vs) 



13. Black Oak. 84. (V,) 



14. Barren Oak. 85. ('/,) 



IS- Spanish Oak. 86. (V.) 



16. Red Maple. 98. (v/) 



17. Silver-leaf Maple. 99. I'l.) 



18. Sugar Maple. 100. (%) 



195 



