13. Report on the Deaths which occurred in the Society's 



Gardens during 1921. By N. S. Lucas, M.B., F.Z.S. 281 



14. Some Spiders from South Annam. By H. R. Hogg, 



M.A., F.Z.S. (Text-figures 1-10.) 285 



15. New Reptiles from Tanganyika Territory. By Arthur 



LOVERIDGE, C.M.Z.S. 313 



16. Notes on the Zebras and some Antelopes of Angola. 



By Gilbert Blaixe, F.Z.S. (Plates I.-YIII.) 317 



17. Notes on the Respiratory Mechanism of the Ampulla- 



riida?. By Guy 0. Robson, M.A., F.Z.S 341 



18. Monkeys and the Fear of Snakes. By C. P. Chalmers 



Mitchell, D.Sc, LL.D., F.R.S., C.B.E 347 



19. Mendelian Experiments on Fowls. III. Production 



of Dominant Pile Colour. By J. T. CuNmNGHAM, 

 M.A., F.Z.S. (Plates I.-II.) 349 



20. Observations on the Land Crab, Cardisoma armatum, 



with especial regard to the Sense Organs. By 

 Miss L. E. Cheesman, F.E.S 361 



21. On the External Characters of some Hystricomorph 



Rodents. By R. I. PococK, F.R.S., F.Z.S. (Text- 

 figures 1-28.) 365 



22. On the Anatomy of the Drill {Mandrilhis leitcojjhmus). 



By Charles F. Sonntag, M.D.. F.Z.S. (Text- 

 figures 9-24.) .' 429 



23. On the Persistence of the Mesopterygoid in certain 



Reptilian Skulls. By R. Broom, F.R.S., C.M.Z.S. 

 (Text-figures 5-7.) 455 



24. A New Species of CEsophagostomum {(Esophagostomum 



xeri, sp. n.) from a Rodent [Xerus setosus). By 



R. J. Ortlepp, M.A. (Text-figures 1 -6.) 461 



25. Note on the Bat-Parasite, Cyclojyodia greeffi Kai-sch, 



and on a new Species of Hymenopterous (Chalcid) 

 Parasite bred from it. By F. W. Ubich, Hugh 

 Scott, M.A., D.Sc, and J. Waterston, D.Sc, F.Z.S. 

 (Text-figure 1.) 471 



