Geol. Mag., 1886. 



Decade III., Vol. III., Pl. XV. 



Fig. 7. X 22 Diam. 



Fig. 8. X 22 Diam. 



Fig. 9. X 22 Diam. 



Fig. 10. X 22 Diam. 



Fig. II. X 24 Diam. 



Fig. 12. X 22 Diam. 



STRUCTURE AND ORGANISMS IN CARBONIFEROUS SHALES AND 



LIMESTONES, 

 FOREST OF DEAN. 



Wn^rlnm n„rl .?„„<■ I ;„,;»„.V 



