PLATE 8. 



Fig. a. Transverse section of the wood of Araucarioylon noveboracense, 

 showing the persistent leaf trace. X 15. 



Fig. 6. Tangential section of the seedling stem of Agathis australis. X 60. 



Fig. c. Another of the same further out in the wood. X 60. 



Fig. d. Longitudinal section through the pith of a trunk of Araucarioxylon 

 noveboracense. X 8. 



Fig. e. Longitudinal section of an undescribed species of Araucarioxylon 

 from New Jersey, showing the region of the pith. X 15. 



Fig. /. Part of the same more highly magnified. X 40. 



