IJST OF CONTENTS. 



1920, pp. 195-656. 



EXHIBITIONS AND NOTICES. 



i'age 

 The Secretauy. Report on the Additions to the Society's 



Menagerie during the month of April, 1920 437 



Mr. R, 1. PococK, F.R.S. Exhibition of, and remarks 

 upon, a mounted sjiecimen of a pale variety of the 

 White-beai'ded Gnu (Connochcetes albojiobatits) 437 



Miss Joan B. Procter, F.Z.S. Exhibition of, and remarks 

 upon, a living specimen of the tailed Batrachian 

 Speleiyes fuscus Bonapat-te 437 



Prof. J. E. DuERDEN, F.Z.S. Exhibition of, and remarks 

 upon, a series of lantern-sUdes illustrating the sexual 

 display and nesting habits of the Ostrich 437 



Prof. R. T. Leiper, D.Sc, M.D., F.Z.S. Exhibition of 

 lantern-slides illustrating the experimental trans- 

 mission of some Helminth infections 438 



Dr. P. Chalmers Mitchell, O.B.E., M.A., LL.D., D.Sc, 

 F.R.S. An Account, illustrated with lantern-slides, 

 of his recent Aeroplane Trip from Cairo to Tabora... 438 



The Secretary. Report on the Additions to the Society's 



Menagerie during the month of May, 1920 438 



Prof. J. E. Duerden, F.Z.S. Exhibition of, and remarks 



upon, a series of Ostrich eggs 439 



Dr. R. J. Tillyard, M.A., F.L.S. An account of the Life- 

 history of the Dragonfly 439 



The Secretary. Report on the Additions to the Society's 

 Menagerie during the months of June, July, Augvist, 

 and September, 1920 ....: , = ... 653 



