Page 

 Salvadori, Tommaso, M.D., C.M.Z.S. 



Descriptions of two new Species of Parrots of the Genus 

 Platycercus. (Plate XII.) 129 



Salvin, Osbert, M.A., F.R.S., F.Z.S. 



Bemarks on the Butterflies of British Central Africa .... 312 



Saunders, Howard, F.Z.S. , F.L.S. 



Exhibition of, and remarks upon, a nearly white skin of 

 a Tiger from Northern India 373 



Exhibition of, and remarks upon, some specimens of the 

 eggs of Larus macuUpennis and Sterna trudeaui, obtained 

 by Mr. Ernest Gibson in the Argentine Republic 373 



ScLATER, Philip Lutley, M.A., Ph.D., F.R.S., Secretary to 

 the Society. 



Report on the additions to the Society's Menagerie in 

 December 1890 1 



Exhibition of, and remarks upon, some sketches made by 

 Lieut. W. E. Stairs, R.E., of the horns of a large Antelope, 

 apparently unknown to Science 1 



Exhibition of, and remarks upon, specimens of three 

 species of Purple Water-hens {Porphyrio poliocephalus, P. 

 caruleus, and P. smaragdonotus) 47 



Report on the additions to the Society's Menagerie in 

 January 1891 121 



On a second Collection of Birds from the Province of 

 Tarapaca, Northern Chili. (Plate XIII.) 131 



Report on the additions to the Society's Menagerie in 

 February 1891 1 79 



Exhibition of, and remarks upon, a specimen of Mac- 

 gregor's Paradise-bird {Gnemophilus macgregon) 1 79 



Exhibition of, and remarks upon, two specimens of the 

 Horns of an Antelope from Somali-land 197 



