
          Tuesday Morning, 13th Oct. 1846 


 Dearest Doctor 


 I send herewith a hasty line in 
 reply to your favor of the 7th. 


 If I were to wait until I am quite 
 ready to go to Philadelphia, I should not leave 
 here till 1st November. But that would be 
 too late for you to accompany me. So, I 
 propose to leave here on Monday evening next, 
 to reach Princeton Tuesday evening.


 I leave Agassiz in New York. He will 
 leave New York Wednesday morning, join me at 
 Princeton, and go on with us to Philada [Philadelphia] that 
 evening. We shall probably go together to Carlisle 
 where he has something to do with that capital 
 naturalist Prof Baird, and I have to get live 
 Vaccinium brachycerum, he will soon return 
 to make ready his lectures here.


 Agassiz is an excellent fellow, and I know you 
 will be glad to make his personal acquaintance. 
 I must make my stay, such as it can be, at Princeton, 
 on my return. 


 The parcel mentioned in yours of the 7th came duly.
 In the collection just received from Lindheimer
 is a new genus?

        