GEOLOGY OF THE FOURTH DISTRICT. 
ORGANIC REMAINS OF THE ONONDAGA LIMESTONE. 
No. 33. —No. G3, page 1G0. 
Fig. 1 . Cyathophyllum - 1 Caledonia. 
Fig. 2. Cyathophyllum dianthus, (Goldfuss Petrefacta, p. 54, pi. 15, fig. 13, and pi. 16, fig. 
1. Silurian Researches, p. 690, pi. 16, f. 12, 12 a to 12 e.) Caledonia. 
Fig. 3. Syringopora - ? The fossil is silicified, standing in relief upon the surface of the 
rock. 
No. 34. — No. 3, page 132, Report of the Third District. 
Fig. 1. Pentamerus elongata. 
Fig. 2. Ilipparionyx ( Atrypa ) consimilaris. 
Fig. 3. Delthyris undulatus. 
These fossils are not common in the Fourth District, though they have been seen at two or 
three localities. 
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