1894. ] NEW YORK ACADEMY OF SCIENCES. 175 
companied by a red streak, which soon developed into a band from east 
to west, passing in the east some 5° north of Virgo and through Auriga 
in the west. 
At 8:32 the northern sky became very brilliant, and at 8:37 the 
umbrella-like formation again showed itself, but in a less marked degree 
than before. 
Shortly after this the light faded away, and before 8:40 the display 
practically ceased, but an aurora of no very extraordinary character re- 
mained in the northern sky until about 9:30, when, although it was still 
visible, I ceased to note its changes. 
The marked peculiarity of this aurora seems to have been its ex- 
tremely vivid red and green light, and the fact that it commenced in the 
west and east, was very brilliant in the south, and, except for a few mo- 
ments, the northern sky was a comparatively insignificant factor in the 
phenomenon. The zenith, at all times of great activity, was the appa- 
rent centre of brilliancy. Very truly yours, 
Cuas. A. Post. 
The second paper, by Prof. Rees on the “ Solar Faculz in the 
Rutherfurd Photographs,” was postponed on account of the 
lateness of the hour. 
Prof. Rees announced the receipt of some very beautiful neg- 
atives from the Lick Observatory, including one of the eclipse 
taken by Schaeberle in South America. 
The Section then adjourned at 10:30. 
Wm. Hatuock, Secretary of Section. 
J. F. Kemp, Recording Secretary. 
STATED MEETING. 
April 9th, 1894. 
In the absence of regular business, the Biological Section 
immediately organized; Prof. H. F. Ossorn in the chair; about 
thirty persons present. 
The following papers were read : 
H. F. Osborn, ‘“‘ A division of the Eutherian Mammalia into 
the Mesoplacentalia and the Czenoplacentalia.”’ 
