174 ICHTHYOLOGIA OH I ENS IS 



' ' Many of my friends in Europe ask me for Birds, 

 quadrupeds, and other Animals of this country which 

 I have not time to prepare for them; but I supply 

 them easily with plants and fossils. If you have 

 many duplicates of Animals to spare already, I would 

 exchange them with pleasure for the following ar- 

 ticles which I have now to spare. 



" I. Some foreign shells from Europe, West 

 Indies, East Indies &c. 



"2. Some marine shells from Long Island, some 

 are new species of Nerita &c. 



"3. Other American shells from the Potowmak, 

 Hudson, Kentucky, Wabash, also rare land shells. 



" 4. Some fossils from Kentucky. 



"5. An herbarium of the Plants of Newyork the 

 Alleghany Mountains, Kentucky &c. With many 

 new genera & species. 



"6. A set of my Works. 



" Tell me how the valuation & exchange may take 

 place, and if needful I shall repair to Cincinnati in 

 September next, in order to Select the objects, and 

 take any other necessary arrangement. 



" I have sent you by mail some time ago the i 

 Number of my Annals of Nature. I will send you 

 when ready my Ichthyology of the Ohio, now pub- 

 lishing in the Western review and in a pamphlet 

 form. 



' ' I send you annexed the sketch of the fish called 

 Shad in Louisville and Pittsburg. I have called it 

 Pomolobus chrysocJiloris in my Ichthyology being totally 

 different from the Atlantic shad which is the Clupea 

 sapidissiuia of Wilson's in Ree's Cyclopedia, and 

 myself in American Monthly Magazine, Decade of 

 New Fishes. If your shad was different from my 



