NATURAL SCIENCES OP PHILADELPHIA. 161 



October 27. 



The President, Dr. Ruschenberger, in the chair. 



Twent3'^-five members present. 



Chapter XIY., Art. Y. of the By-Laws was amended to read 

 as follows : " Six members shall constitute a quorum. Except 

 the election of members and corres})ondents, no question other 

 than purely scientific shall be decided at any meeting unless at 

 least twenty members vote ;" the words " except the election of 

 members and correspondents" being added to the original article. 



The following paper was presented for i)ublication : 

 "Synopsis of the Muridai of North America." By Dr. Elliott 

 Coues, IJ. S. A. 



W. S. Bissel, Dr. A. M. Owen, U. S. N., James Dougherty, 

 Daniel Maul, John Rothermel, John B. Robinson, Charles H. 

 Howell, and Mrs. Elizabeth V. Graham, were elected members. 



Dr. A. E. Carothers, of Saltillo, Mexico, was elected a Corre- 

 spondent. 



On report of the Committee to which it was referred, the follow- 

 ing paper was ordered to be published : 



