NEW SERIES. 



Vol. VI. No. 23. 



JULY 1870. 



Frice 65. 



\i' 



iTT 



THE IBIS, 



QUARTERLY JOURNAL OP ORNITHOLOGY. 



EDITED BY 



ALFRED NEWTON, M.A., F.R.S., 



PROFESSOR OP ZOOLOGY ANT) COMPARATIVE ANATOMY 



IN THE UNIVERSITY OF CAMBRIDGE, 



F.L.S., V.P.Z.S., ETC., ETC. 



LONDON": 

 JOHN VAN VOORST, 1, PATERNOSTER ROW. 



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