10. The Duke of Bedford's Zoological Exploration of Eastern 



Asia.— XIII. On Mammals from the Provinces of 

 Kan-su and Sze-chwan, Western China. By Oldfield 

 Thomas, F.R.S., F.Z.S 158 



11. On the Structure and Function of the Gas Glands and 



Retia Mirabilia associated with the Gas Bladder of 

 some Teleostean Fishes, with Notes on the Teleost 

 Pancreas. By W. N. F. Woodlakd, F.Z.S. , The 

 Zoological Department, University College, London. 

 (Plates II.-IX. and Text-figs. 53-62.) 183 



12. On Skulls of Oxen from the Roman Military Station at 



Newstead, Melrose. By J. C. Ewart, M.D., F.R.S., 

 F.Z.S. (Text-figs. 63-91.) 249 



13. Plankton from Christmas Island, Indian Ocean. — I. On 



Copepoda of the Family Coryceeida?. By George P. 

 Farran. (Plates X.-XIV.) 282 



14. On some New Zealand Spiders. Bv H. R. Hogg, M.A., 



F.Z.S. (Text-figs. 92-96.) " 297 



15. Report on the Deaths which occurred in the Zoological 



Gardens during 1910. By H. G. Plimmer, F.R.S., 

 "T.Z.S., Pres. R.M.S., Pathologist to the Society 318 



16. A Contribution to the Study of the Variations of the 



Spotted Sala,mander (Salamandra maculosa). By 

 Edward G. Boulenger. (Plate XV. and Text- 

 figs. 99-102.) 323 



17. On the Mountain Nyala, Tragelaphus buxtoni. By R. 



Lydekker. (Plate XVI. and Text-fig. 103.) 348 



18. Observations on diflerent Gibbons of the Genus ZTv/ZoSft^es 



now or recently living in the Society's Gardens, and on 

 Symphalangihs syndactylus, with Notes on Skins in the 

 Natural History Museum, S. Kensington.. By Dr. F. 



D. Welch, F.Z.S 353 



19. Some New Siphonaptera from China. By Karl Jordan, 



Ph.D., F.E.S., and the Hon, N.. Charles Roth- 

 schild, M.A., F.Z.S., F.E,S. (Text-figs. 104-124.) ... 365 



20. Contributions to the Anatomy of the Anura. By Frank 



E. Beddard, M.A., F.R.S., F.Z.S., Prosector to the 

 Society. (Text-figs.- 125-133.) 393 



