1851.] 



275 



more easily traced. In other aspects, too, they present interesting points for 

 study, perhaps of general interest in zoological science. 



Dr. Zantzinger offered the following, which was adopted, 

 Resolved, That a member of the Society be appointed to prepare a 



new and extended "Notice cf the Academy," to be read before the 



Society, and designed for publication. 



The Chairman on motion being authorized to make the appointment, 



selected Dr. Ruschenberger, who accepted the same. 



ELECTION. 



The Rev. Lorenzo L. Longstreth, of Philadelphia, was elected a 

 Member of the Academy. 



October 1th. 

 Vice President Bridges in the Chair. 



Dr. Leidy read a paper intetided for publication in the Proceedings, 

 entitled " Corrections and Additions to former papers on Helmintho- 

 logy published in the Proceedings of the Academy of Natural Sci- 

 ences of Philadelphia," which was referred to Dr. Zantzinger, Dr. 

 Fisher, and Dr. Watson. 



A letter was read from the Secretary of the Geological Society of 

 London, dated May 1st, 1851, acknowledging the receipt of recent 

 numbers of the Proceedings. 



Dr. Leidy remarked, the members probably recollected that a few evenings 

 since he had mentioned, that it had been asserted by numerous and good authorities, 

 that Gordii had been observed within the body of insects. He now exhibited a 

 specimen of a Gordius and a grasshopper, preserved in a bottle of alcohol, which 

 had been sent to him by his friend Dr. Budd, of Pemberton, New Jersey. The 

 Gordius, Dr. Budd stated, was seen to come out of the body of the grasshopper, 

 and in a half an hour afterwards died. It is a different species from those de- 

 scribed a short time since. It is a female, about six inches long, by half a line in 

 length, rigid, strongly marked by transverse wrinkles, and annuli, with the caudal 

 extremity somewhat compressed and obtuse. To the species he gave the name 

 Gordius robustus. 



He also exhibited a species of Mermis from Brazil, belonging to the collection 

 of the Academy. It is fourteen and a half inches long, and of a reddish brown 

 color. To it he gave the name Mermis ferruginea. 



October \Uh. 



Vice President Bkidges in the Chair. 



Mr. Cassin read a paper entitled " Catalogue of the Caprimulgidas in 

 the collection of the Academy of Natural Sciences of Philadelphia," 



