natural sciences op philadelphia. 51 



February 21. 

 Mr. Yaux, Yice-President, in the chair. 

 Nineteen members present. 



February 28. 

 The President, Dr. Ruschenberger, in the chair. 

 Twenty-one members present. 



The following were elected members : — 



Caleb Cressou, J. B. White, M.D., William. P. Jenks, Henry T. 

 Peck, Archibald Mclntyre, John McLaughlin, Lewis Thompson, 

 George Thompson, Rachel L. Bodlej^, Lieut. Clarence E. Button, 

 S. J. W. Mintzer, M.D., Elizabeth Shreve, Charles C. Phillips, 

 Richard Morris Smith, S.Warren O'Neil, Charles T. Yerkes,Jr. 



S. B. Buckley was elected a correspondent. 



On favorable report of the committee, a paper "On Certain 

 Species of Falconidse, Tetraonidfe, and Anatidse," b}' Prof. A. 

 Newton, was ordered to be printed. 



March Y. 



The President, Dr. Ruschenberger, in the chair. 



Twenty-nine members present. 



The following paper was presented for publication : — 

 " Descriptions of new species of Invertebrate fossils from the 

 Carboniferous and Devonian Rocks of Ohio." By F. B. Meek. 

 The death of Dr. Charles M. Wetherill was reported. 



Mr. Thomas Mbehan referred to some observations he made 

 before the Academy last autumn in regard to a peculiar storing up 

 of turpentine in the common insect, Redumus novenm-iu^. Since 

 then entomologists had been investigating the use for which this 

 turpentine was employed, without success. He was now able to 

 report that it was for the purpose of fastening its eggs on the 

 branches of trees, and for sticking them together. Also, in pro- 

 bability, as a means of protection against enemies and tlie weather. 

 The eggs of the Redumus were inserted in groups, and each set 

 upright one against another with the turpentine, like the cell in a 



1871.] 



