PLATE XV. 



Figs. 1 — 4. — Anthracomya Wardi. Crushed forms from the lower part of the 

 Little Mine Ironstone, Fenton. My Collection. (Page 105.) 



Figs. 5 — 9. — Anthracomya Williamsoni, var. obtusa. From the roof of the 

 Hard Mine Coal of Longton and Bucknall. My Collection. (Page 103.) 



Fig. 5 a. — Fig. 5 from above. 



Fig. 10. — Anthracomya Williamsoni. (Page 99.) 



Fig. 11. — Anthracomya lanceolata. Horizon uncertain. From the Glebe 

 Colliery, Fenton. My Collection. (Page 104.) 



Fig. 11 a. — The same viewed from above. 



Fig. 12. — Anthracomya Wardi. Young form from the roof of the Holly Lane or 

 Bowling Alley Coal ?, Bucknall, North Staffordshire. My Collection. (Page 105.) 



Fig. 13. — Anthracomya Wardi. From Burnley. In the Collection of the 

 Manchester Museum, Owens College. (Page 105.) 



Fig. 14. — Anthracomya Wardi. The type specimen from the shale over the 

 Holly Lane ? Coal, Adderley Green, North Staffordshire Coal-field. Collection 

 of Mr. John Ward, F.G.S. (Page 105.) 



Fig. 15. — Anthracomya Wardi. Shale over Burnwood Ironstone, Chell. North 

 Staffordshire Coal-field. My Collection. (Page 105.) 



Fig. 16. — Anthracomya Wardi. ? From near Pendle. In the Collection of the 

 Manchester Museum, Owens College. (Page 105.) 



Fig. 17. — Anthracomya Wardi. Young form. Burnley. Same Collection. 

 (Page 105.) 



Fig. 18. — Anthracomya Wardi. Pyritised specimen from the Fulledge Colliery, 

 Burnley. Collection of Mr. George Wild. (Page 105.) 



Fig. 19. — Anthracomya Wardi. An uncrushed specimen from the neigbour- 

 hood of Burnley. Owens College Collection. (Page 105.) 



Fig. 20. Anthracomya Wardi. From the shale above the Bowling Alley Coal 

 at Whitfield, North Staffordshire Coal-field. My Collection. (Page 105.) 



Fig. 21. Anthracomya senex. The original of the type of Mr. Salter's species; 

 Iron-ores of South Wales, pi. ii, fig. 12. From the Collection of the Geological 

 Survey, Jermyn Street, London. (Page 111.) 



Fig. 21 a. — The same viewed from above, showing the hinge and wrinkled 

 periostracum. 



Figs. 22 — 28. — Anthracomya senex. A series from the horizon of the Cocks- 

 head Ironstone of Adderley Green, North Staffordshire. M3 7 Collection. 

 (IVv 111.) 



Figs. 29 — 49. — Anthracomya pulchra. A series showing the alteration of shape 

 during growth. From the lower part of the Burnwood Ironstone, Newchapel, 

 North Staffordshire Coal-field. My Collection. (Page 114.) 



