PLATE XXIV 



PAGE 



Figs. 1, 2. FAVOSITES FAVOSUS VAR. INTEGRITABULATUS Swartz n. var 214 



1. Weathered corallum. 



2. Longitudinal section of several cells. 



Helderberg formation, Keyser member, Warrior Mountain, 

 Allegany County. 



Figs. 3-6. FAVOSITES ? SCHRIVERI (Herzer) 214 



3. 4. Upper and side views of enlarged base of corallum. 

 5, 6. Fragments of brandies. 



Oriskany formation, Ridgely member, opposite Keyser, W. Va. 



15 



