PLATE VIII. 



Ym. 1. Jet a.nd couifeTons wood (Araucarioxi/loni). Page 68. [51,601.] 



Fig. 2. Jet and coniferous wood. P. 68. [51,639.] 



Fig. 3. Jet (pure) in tangential longitudinal section. P. 69. [51,595.] 



Fig. 4. Jet and silicified wood (slightly reduced). P. 69. [51,493.] 



Fig. 5. Jet (pure) in transverse section. P. 69. [51,623.] 



Fig. 6. Jet and silicified wood {Arauanrioxylon ?). P. 69. [51,448.] 



Fig. 7. Jet (pure) in transverse section. P. 69. [51,623.] 



