A 



TRANSACTIONS 



AMERICAN PHILOSOPHICAL SOCIETY, 





HELD AT PHILADELPHIA, 



FOR PROMOTING USEFUL KNOWLEDGE. 



VOL. XIV.— NEW SERIES. 



PART 11. 



Article II. — On the Revision of the Tenehrionidce of America, North of Mexico. 

 By George H. Horn, M.D. Page 253. 



£ h i U At I V h i a : 



PUBLISHED BY THE SOCIETY, 



AND FOR SALE BY 



HENEY C. LEA, PHILADELPHIA; 

 N. TRUBNER & CO., 60 PATERNOSTER ROW, LONDON. 



PRINTED BY M' CALL A * STAVKLY. 

 1870. 



