PLATE LXXV. 



FIG. 53. Longitudinal section of the wood under the terminal bud: 

 q, stone cells; z, tracheids; I, wood parenchyma. X 260. 



Fig. 54. Tangential section of the wood showing end view of medul- 

 lary rays and their frequency per square millimeter. The square repre- 

 sents a square millimeter: m, medullary ray. X 21. 



Fig. 55. A bast fiber from the wood. X 137.5. 



