I30 NEW YORK STATE MUSEUM 
evidence at the center, of a hole or elevation representing such 
hole. Described in terms of the original depression, we have a 
double saucer with the form of an ogee champagne shell, covered 
with sharp threadlike depressions, and without evidence of a ver- 
tical tube running down into the mud. In two of these speci- 
mens there seems to be a connection with a stem or shaft lying 
horizontal on the surface of the slab, straight in direction but 
showing traces of jointing or segmentation: such as may have 
been made by a crawling or sliding worm. In some such circular 
depression, a boring or burrowing sea-urchin may have wallowed ; 
some many-tentacled annelid may have moved along the surface 
and stopped to flap its armed head back and forth and about; 
some Porpita-like thing have died and decayed; perhaps some 
ascidian have left its trace. At all events some nut dropped here 
for paleontologists to crack. Many years ago the writer sent 
drawings of these objects to several competent paleontologists 
with a request for their interpretation of them. Replies but no 
answers were received and as the lapse of time has brought no 
light, more general attention is invited to them in this formal way. 
Someone somewhere may have the correct solution. 
These fossils have been found in the Chemung formation at 
Olean and at Hinsdale, Cattaraugus county, and at Bolivar, 
Allegany county. 
