BULIaETIK 



OF THE 



Scientific Laboratories 



OF 



DENISON UNIVERSITY. 



VOL. VIII, PART 11 



WITH EIGHT PLATES AND NINE CUTS. 



EDITED BY 



W. G. TIGHT, M.S., 



Deparhnent of Geology and Natural History. 



GRANVILLE, OHIO, JUNE, 1894. 



