PLATE 8. Fig. a. Transverse section of the wood of Araucarioylon noveboracense, showing the persistent leaf trace. X 15. Fig. b. Fig. c. Tangential section of the seedling stem of Agathis australis. X 60. Fig. e. Longitudinal section of an undescribed species of Araucarioxylon from New Jersey, showing the region of the pith. X 15. Fig. f. Part of the same more highly magnified. 40. |