HT7SCHENBERGER>S SERIES. 



FIRST BOOKS OF NATURAL HISTORY. 



ELEMENTS OF ORNITHOLOGY 



PREPARED FOR THE USE OF 



SCHOOLS AND COLLEGES, 



BY 



W. S. W. RUSCHENBERGER, M.D. 



Burgeon in the U. S. Navy; Fellow of the College of Physicians; Hon. 



Member of the Philadelphia Medical Society; Member of the 



Academy of Natural Sciences of Philadelphia, &c. &c. 



FROM THE TEXT OF 



MILNE EDWARDS, AND ACHILLE COMTE, 



PROFESSORS OF NATURAL HISTORY IN THE COLLEGES 

 OF HENRI IV, AND CHARLEMAGNE. 



WITH PLAT ES. 



PHILADELPHIA: 

 GRIGG & ELLIOT, 



NO. 9 NORTH FOURTH STREET 



1845. 



