J 



PLATE 32. 



Favosites cariosus, Nov. Spec. Devonian. 



1. Rear lateral view of the base and trunk of the example figured in 



Plate 31. 



2. Rear lateral view of a typically marked fragment of a frond, artifi- 



cially attached to the matrix of example 3 for delineation; from 

 the horizon and locality of the preceding specimen. Collection of 

 the author. 



4. Front lateral view of a fragment from the Lower Devonian rocks, 



Falls of the Ohio. Collection of the author. 



Favosites ixtertextus. Devonian. 



3. Lateral views of portions of fronds imbedded in the matrix, from the 



Lower Devonian. Falls of the Ohio. Collection of Dr. Knapp. 



Favosites emmonsi. Devonian. 



5. Vertical section of a fragment (prostrate) showing the squamous 



tubes and incomplete tabula? proper to the species; from the 

 Lower Devonian, near Louisville. Collection of Dr. Knapp. 



Michelixia cylixdrica. Devonian. 



6. Longitudinal section of a fragment showing the complicated sub-ves- 



icular tabulae; from the blue clay of the Middle Devonian, Falls 

 of the Ohio. Collection of Dr. Knapp. 



