LETTEBS FROM PROF. AGASSIZ. 187 



ology and dentition of the two genera. They differ as 

 much as Perca-Lucioperca do. I have sent a short notice 

 upon this subject to Dana, iov Silliman's Journal. 



Hoping to liear from you soon again, I remain, with high 

 regard, 



Yours, Very Truly, 



L. Agassiz. 



Dr. KiRTLAND. 



Cambridge, February 15, 1854. 

 My Dear Sir: 



On my return from a trip in Western New 

 York, I was delighted to find your kind letter upon my 

 table. 



I regretted very much, when in Buffalo, to be utterly 

 unable to spare the short time it would have cost me to 

 run over to Cleveland to see you, but I intend doing so 

 next, summer. Meanwhile let me say that any fish you 

 can send me will be a godsend, with a label from you, and 

 I would thank you to let me have at once what you can 

 now, and to forward later the result of the Spring fishing. 



In the next number of Silliinaii' s Journal you will find 

 an article of mine, in which I have been able to identify 

 some more species of Rafinesque. With reference to Cent- 

 rarchus ^neus of Ohio, I presume it will turn out to be the 

 same as that from the Tennessee, or a new one ; at all events 

 the Tennessee species differs from the Eastern one. May 

 be yours is Rafinesque's and mine from Tennessee are new 

 species. From the want of Ohio specimens I could not 

 decide. 



I should be delighted, after you have looked through my 



