XIU 



Page 

 Mitchell, P. Chalmers, M.A., D.Sc, Hon. LL.D., F.R.S., 



F.Z.S., Secretary to the Society. 



Report on the Additions to the Society's Menagerie 

 during the months of June, Jvily, August, September, 

 and October, 1910 1 



Report on the Additions to the Society's Menagerie 

 during the month of November 1910 100 



Report on the Additions to the Society's Menagerie 

 during the month of December 1910 181 



Exhibition of a mounted specimen of the Platypus 

 {Ornithorhynchus paradoxus) 181 



Report on the Additions to the Society's Menagerie 

 during the month of January 1911 314 



Exhibition of a series of lantei-n-slides illustrating 

 some of the most remarkable features of Mr. Carl 

 Hagenbeck's new Tierpark at Stellingen 358 



On Longevity and Relative Viability in Mammals and 

 Birds; with a ISTote on the Theory of Longevity 425 



NicoLL, Dr. William, F.Z.S., Lister Institute of Preventive 

 Medicine. 



Demonstration of his method for the collection of 

 Trematodes 45 



NicoLL, Dr. William, F.Z.S., and Minchin, Prof. E. A., 

 M.A., V.P.Z.S. 



Exhibition of, and remarks upon, two species of Cysti- 

 cercoids from the Rat-flea [Ceratophyllus fasciatus). 

 (Text-figs. 1& 2.) 



