Nov. 1847.] 315 



Several living Opossums, for Dr. C. D. Meigs, Dr. Wat- 

 son, and Dr. Wilson. 



Heads of echinal spines from the Sivalik Hills. Presented by 

 Dr. Morton. 



DONATIONS TO LIBRARY. 



Iconographie Ornithologique ; par 0. Des Murs. Liv. 9. 4to. 



Presented by Mr. Edward Wilson. 

 Revue Zoologique. Nos. 7 and 8, 1847. Deposited by Dr. 



Wilson. 

 The National Magazine and Industrial Record. Edited by 



Redwood Fisher. 18 Nos. complete. New York, 1845-46. 



From the Author, through Mr. Thomas Fisher. 



The following extract from a letter from Prof. Haldeman, 

 dated 11th November, 1847, was read. 



" Herpetologists now suppose that Salamandra erythronota, 

 Green, and S. cinerea, Green, are opposite sexe3 of the same 

 species. The two are frequently found under the same stone 

 or log, but I have never seen one with intermediate characters. 

 I recently found six individuals and submitted them to dissection. 

 Four of cinerea, opened successively, proved to have gravid 

 ovaries, and two of erythronota to be males ; but to be certain, I 

 submitted the seminal matter to microscopic examination, and 

 found spermatozoa, although not fully developed. Subsequently 

 I found two erytlironota with gravid ovaries, so that not being 

 sexual, and no intermediate forms having been observed, I am 

 induced to believe that Green was right in proposing two species." 



Stated Meeting Nov. 23, 1847. 

 Vice President Morton in the Chair. 



DONATIONS TO MUSEUM. 



Fossil Saurian bones in a matrix of conglomerate, compris- 

 ing several vertebrae, parts of paddle, &c, probably an un- 

 described extinct animal. Found near Hossack Creek, 



