XI 



Page 

 Mitchell, Dr. P. C. (cont.). 



Report on the Additions to the Society's Menagerie 

 during the month of March, 1921 443 



On a letter i-eceived from Mr. E. H. Bean, Director of 

 the Washington Park, Milwaukee, Wis., U.S.A., describing 

 the successful rearing of a Polar Bear Cub 444 



Newton, E. T., F.R.S., F.Z.S. 



Fossil Bird-remains collected by Dr. Forsyth Major in 

 Sardinia, Corsica, and Greece 229 



Procter, Miss Joan B., F.Z.S. 



On the Variation of the Scapula in the Batrachian 

 Groups Aglossa and Arcifera. (Text-figures 1-10.) 197 



PococK, B. I,, F.R.S., F.Z.S. (Curator of Mammals). 



The External Characters and Classification of the 

 Procyonidje (Raccoons, etc.). (Text-figures 1-13.) 389 



Exhibition of, and remarks upon, the skull of a 

 Sumatran Tiger 442 



Exhibition of, and remarks upon, a Cheetah skin from 

 Tanganyika Territory . . 442 



RoBSON, G. C, B.A, 



On the Molluscan Genus Cochlitoma and its Anatomy, 

 with Remarks upon the Variation of two closely-allied 

 Forms. (Text-figures 1-9.) 249 



Suerborn, C. Davies, F.Z.S. 



Exhibition of a coin of the Saka Dynasty, showing the 

 so-called " maneless lion " 445 



Shufeldt, Dr. R. W., C.M.Z.S. 



The last of the Passenger-Pigeons (EcCojn^tes migra- 

 toriiis). (Text-figure 1.) 441 



