1889.] NATURAL SCIENCES OF PHILADELPHIA. 425 
One of the most important events of the year was the considera¬ 
tion of an invitation from the University of Pennsylvania to the 
Academy to remove to a plot of ground in West Philadelphia in 
immediate proximity to the University. After mature considera¬ 
tion by the Council, to which the subject was referred for considera¬ 
tion and report, a resolution respectfully declining the invitation 
was adopted by the Academy by a vote of sixty-eight in the affirm¬ 
ative to three in the negative. 
A committee was appointed January 29th to consider the propri¬ 
ety of giving a series of social entertainments to serve as reunions 
of the members with a view to promoting the interest and efficiency 
of the meetings of the Academy. The committee having reported 
favorably they were authorized to receive subscriptions to the nec¬ 
essary fund, the understanding being that no expense should be in¬ 
curred by the Academy. Sufficient encouragement hsis been re¬ 
ceived to provide for at least three of the contemplated reunions, ar¬ 
rangements for the first of which will be made when a favorable op¬ 
portunity presents itself. 
The Academy is to be congratulated on having received from the 
Legislature substantial recognition in an appropriation of $50,000' 
towards the erection of the new building so pressingly needed for 
the arrangement and exhibition of the rapidly growing collections. 
A detailed statement of the steps taken to begin the work of erec¬ 
tion at an early date will be found in the report of the Curators. 
By resolution of the Academy the hall was placed at the service 
of Dr. J. T. Rothrock for the delivery of a course of seven Michaux 
Lectures to extend from Dec. 4, 1889, to Jan. 29, 1890. 
All of which is respectfully submitted. 
Edw. J. Nolan, 
Recording Secretary. 
REPORT OF CORRESPONDING SECRETARY. 
The correspondence of the past year has been almost entirely in 
reference to the publications of the Academy and has consisted of 
acknowledgments from corresponding societies or letters of trans¬ 
mittal from them, usually accompanying their publications. 
The plan adopted several years ago of sending our publications 
by mail to the more active societies at home and abroad seems to be 
working very satisfactorily and the prompt acknowledgment, usu- 
