180 APPENDIX. 



" I believe this statement meets all your queries in your last letter, and I am pleased that 

 it has (so unexpectedly) occurred that I can give you the information sought." 



June 12, 1849. — " The ' one link ' in the chain of evidence in regard to the Mastodon tooth 

 wanting, is easily supplied, I think ; for both Dr. Griffith of Philadelphia, and the Rev. Dr. Moms 

 of Baltimore, recognize the tooth in the Academy at Philadelphia as the one that was in the 

 Academy at Baltimore (the same about whick we have been corresponding). Both Dr. Griffith 

 and the Rev. Dr. Morris are naturalists, accustomed to the scrutiny of objects of Natural History ; 

 and they have no doubt in regard to the matter. Their opinion would weigh more with me 

 than that of Mr. Tilden, a person unaccustomed to such examination of objects ; but, if you 

 think it worth while to submit a cast of the tooth to him, I will cheerfully do so for you. I 

 should have said that the above gentlemen were active members of the Academy at Baltimore ; 

 Dr. Griffith being then a resident of our city. 



" I was not aware, until sometime after our correspondence, that the tooth was in the 

 Academy at Philadelphia, nor was the late Professor Ducatel. A curious subject of inquiry 

 would be, how it found its way, as is said, into the hands of a London dealer, and was pur- 

 chased, &c, &c" 



After the reception of the last letter, I met Dr. Griffith in the Academy of Natural Sciences 

 at Philadelphia ; Dr. Hays, Dr. "Wilson, and a number of other gentlemen being present ; when 

 Dr. Griffith identified the tooth before us with the Longirostris tooth seen by him in the collec- 

 tion of the Academy at Baltimore. 



