128 
March 30th. 
PRESIDENT NEWBERRY in the chair. Fourteen persons 
present. 
Dr. HABEL gave a description of his observations on hum- 
ming-birds in Central America, particularly as to their insec- 
tivorous character, as shown both by noting the habits of the 
birds, and by frequent dissections. 
Dr. B. N. Martin remarked further upon the subject, and 
stated that the fact that many T'rochilide are, to some extent 
at least, insectivorous, has been long familiar to ornithologists. 
The remainder of the evening was occupied by Mr. Boyte, 
in the presentation of some views concerning astronomical 
agencies as producing changes of climate in past geological 
periods, and a discussion thereon by the President. 
April 6th. Business Meeting. 
PRESIDENT NEWBERRY in the chair. Twelve persons present. 
On the recommendation of the Committee on Nominations, 
the following gentlemen were elected as Resident Members ; 
Mr. L. E. Chittenden, Prof. Clarence King, and Dr. H. Le 
Baron Hartt. 
The evening was almost entirely occupied with matters of 
business, mainly with the nomination of a large number of 
new members, for election at the May meeting, and with 
oO) 
some questions as to the manner of issuing the Proceedings. 
The meteorology of the three winter months, as reported 
by Dr. O. W. Morris, may be summed up as follows :— , 
DEcEMBER, 1873. Temperature. Pressure. Humidity. 
Maximum 65:5° 30°512 Saturation. 
Minimum 22°° 29°254 25°° 
Range 43°5° 1:258 75°° 
Mean 37°49° 29-985 70°29° 
