Geol. Mac, 18S6. 



Decade III., Vol. III., Pl XIV. 



Fig i. X 12 Diam. 



Fig. 2. X 22 Diam. 



Fig- 3- X 22 Diam. 



Fig. 4. x 22 Diam. 



Fig- 5- X 22 Diam. 



Fig. 6. X 12 Diam. 



STRUCTURE AND ORGANISMS IN CARBONIFEROUS SHALES AND 



LIMESTONES, 

 FOREST OF DEAN. 



Photo-Zinco. Water/out and Sons Limited. 



