©ompUment^ of 



5cientitic~Iaboratories 



OF 



tS)EN|f<i)ON UNIVEt^<i)ITV, 



EDITED KV 



W. G. TIGHT, M. S., 

 Department of Geology and Natural Histurv 



VOL. V. 

 Wrj'H T\VE\T^' PLATKS. 



(xRANVILLK, OHIO, JVNE, 1890. 



