OF THE 
DEMSON UNIVERSITY 
WtTH Fi'VE PLATES, 
. '.EDITED BY 
W.' 6. TIGHT, M. S., 
OE Geology and Na'tural History, 
PAGE 
^^ofewa, '^opepoda, Ostracoda and Rotifera of Cincin- 
e^lBription of New Species. Plates I-lI. C. H, Tifrner— 
^^^IFactories of.cthe Opossum, Didelphys^MlilVirginica. 
C. L'. Herri'ckA-.— 1 — 
?-^G.|^f#l'LtE,>OHIO; JANUARY, 
