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 Exhibition of a Skin of the Yellow-billed Cuckoo (Coccyzus 

 americanus) from Buenos Ayres 496 



On the Birds of the Rio Negro of Patagonia. By W. H. 

 Hudson, C.M.Z.S. With Notes by P. L. Sclater, M.A., 

 Ph.D., F.R.S., Secretary to the Society. (Plate XXXI.). . 534 



Report on the Additions to the Society's Menagerie in 

 March 18/2 602 



Exhibition of the Skull of a Hairy Tapir (Tapirus roulini), 

 and Remarks on its Differences from that of T. terrestris . . 604 



On the Habits of the Swallows of the Genus Progne met 

 with in the Argentine Republic. By W. H. Hudson, 

 C.M.Z.S. With Notes by P. L. Sclater, M.A., Ph.D., 

 F.R.S., Secretary to the Society 605 



Report on Additions to the Society's Menagerie in April 

 1872. (Plates L.-LII.) 635 



Observations on the Birds of St. Lucia. By the Rev. 

 J. E. Semper, Colonial Chaplain. With Notes by P. L. 

 Sclater, M.A., Ph.D., F.R.S., Secretary to the Society . . 647 



On the Species of Quadrumana collected by Mr. Buckley 

 in Ecuador. (Plate LIV.) 663 



Exhibition of a specimen of Coccyzus erythrophthalmua 

 killed in Ireland 681 



Additional Notes on rare or little-known animals now or 

 lately living in the Society's Gardens. (Plates LVII.-LIX.) 688 



Report on Additions to the Society's Menagerie in May 

 1872 728 



Exhibition, for Mr. Vincent Legge, of a pair of a new 

 Ceylonese bird, proposed to be called Prionockilus vincens. . 729 



Report on the Additions to the Society's Menagerie during 

 the months of June, July, August, and September, 1872. 

 (Plate LXVII.) 789 



Announcement of the Birth of a Hippopotamus in the 

 Society's Gardens 795 



