No. 72. 



ABSTRACT OF THE PROOEBDINaS 



OF THE 



ZOOLOGICAL SOCIETY OF LONDON.^ 



May 25tli, 1909. 



Dr. S. F. Harmer, M.A., F.R.S., Yice- President 

 in the Chair. 



The Secretary read a Report on the additions that had been 

 made to the Society's Menagerie during the month of April 

 1909. 



Mr. J. L. BoNHOTE, M.A., F.L.S., F.Z.S., exhibited the skins 

 of an example of a tetragen hybrid Duck of the F^ generation, 

 which he had bred in his aviaries, and pointed out that the 

 characters of this bird were a striking confirmation of the truth 

 of Mendel's Law. Mr. Bonhote also exhibited a pair of pentagen 

 hybrids of the F, generation, which were interesting as showing 

 to what extent cross-breeding could be carried among certain 

 species, the hybrids proving fertile to at least the fourth 

 generation since the last cross with a pure species. 



Mr. L. Harding Cox, F.Z.S., exhibited a living specimen of 

 the Amblystome or transformed Axolotl, and drew attention to 

 the following distinguishing points of the terrestrial batrachian, 

 viz. : alteration in dentition, possession of lungs and eyelids, 

 absence of gills and crest, and variation in colour. 



Mr. R. Lydekker exhibited the photograph of a young Stag 

 from Sikhim, now living in Nepal, which he believed to represent 



* This Abstract is published by the Society at 3 Hanover Square, London, 

 W., on the Tuesday following the date of Meeting to which it refers. It will 

 be issued, free of extra charge, to all Fellows who subscribe to the Publications, 

 along with the ' Proceedings ' ; but it may be obtained on the day of publication 

 at the price of Sixpence, or, if desired, sent post-free for the sum of Six 

 Shillings per annum, payable in advance. 



