504 PROCEEDINGS OF SCIENTIFIC SOCIETIES. 
direction to the abnormally specialized. We would then have something 
like the series thus represented on the blackboard (some suborders being 
omitted), the index hands representing the respective nature and direc- 
tion of the groups. 
Subclass MONODELPHIA. 
I.— PRIMATE SERIES. 
rder ATES. 
Suborder ANTHROPOIDEA. Suborder LEMUROIDEA. 
IIl.—FERAL SERIES. 
r FERZE 
Suborder FISSIPEDIA. -&r Agar Suborder PINNIPEDIA. 
Order CETE. 
Suborder ZEUGLODONTES. Suborder ODONTOCETE. Suborder MYSTICETE. 
III.—INSECTIVOROUS SERIES. 
Order INSECTIVORA. 3 LE" Order CHIROPTERA., 
IV.— UNGULATE SERIES. 
Order UNGULATA. 
Suborder ARTIODACTYLA. Suborder PERISSODACTYLA. 
Order HXRACOIDEA..£&2 Order PROBOSCIDEA. Q~ Order SIRENIA. 
V.— RODENT SERIES. 
Order GLIRES. 
Suborder SIMPLICIDENTATA. Suborder DUPLICIDENTATA. 
VI.— EDENTATE SERIES. 
Order BRUTA, or EDENTATA. 
Subelass DIDELPHIA. 
Order MARSUPIALIA. 
Subelass ORNITHODELPHIA. 
Order MONOTREMATA. 
Any orders than those admitted seem problematical, and the adoption 
of an order Bimana for man alone — much more a subclass — seems to be 
pro- 
position in biology more demonstrable than that man is the derivative 
from the same immediate stock as the higher anthropoid apes, and prob- 
ably after the culmination to nearly the same extent as at present of the 
differentiation of the order into families and subordinate groups. 
Professor A. WINCHELL read ** Notes on some Post Tertiary Phenomena 
in Michigan." This paper was intended simply to make note of three 
roides Ohioensis), have been recently found in Michigan. What is pu 
haps most interesting of all, is the discovery of a flint arrowhead in à 
