432 PROCEEDINGS OF THE ACADEMY OF [1888. 



that the Cyclops were food and filled the stomach. ^It appeared 

 remarkable that they should haye been so well preserved and not 

 crushed by the strongly, six-toothed mandibles of the Barnacle. 

 Some additional specimens of this species and a few of Lepas anati- 

 fera, subsequently examined did not contain such an accumulation 

 of similar food; but usually the contents of the stomach consisted 

 from two to half a dozen small gastropods with the shell, several 

 species of entomostraca, some sand grains and a few vegetable fibres. 

 In all, the brood-capsule^ a thin elliptical lamina, situated between 

 the body and the shell, contained Nauplius larvae. 



DecembePv 18. 

 Mr. Charles Morris in the chair. 

 Sixteen persons present. 



December 25. 

 The President, Dr. Joseph Leidy, in the chair. 



A paper entitled "Notes on Geology and Mineralogy" by John 

 Eyerman was presented for publication. 



The death of Dr. Casper Wister, a member, Dec. 20, was an- 

 nounced. 



