No. 227. 



ABSTRACT OF THE PROCEEDINGS 



OP THE 



ZOOLOGICAL SOCIETY OF LONDON.^ 



April 4th, 1923. 



Prof. E. W. MacBribe, F.R.S., Vice-President, 

 in the Chair. 



Mr. C. Tate Regan, F.R.S., F.Z.S., exhibited, and made re- 

 marks upon, a series of Ian tern -slides illustrating specimens of 

 various blind fresh-water Fishes from caves. 



Mr. R. H. Burne, M.A., F.Z.S., exhibited, and made remarks 

 upon, specimens demonstrating the recessus orbitalis in Flat 

 Fishes. 



Mr. L. T. HoGBEN, B.A., F.Z.S., exhibited living specimens, 

 and made remarks upon tlie influence of pituitary gland in 

 inducing metamorphosis of the Axolotl. 



Mr. .J. T. Cunningham, M.A., F.Z.S., communicated his paper 

 on " Mendelian Experiments on Fowls. — III. Production of 

 Dominant Pile Colour." 



* This Abstract is published by the Society at its offices, Zoological Gardens, 

 Regent's Park, ISf.W., ou the Tuesday following the date of Meeting to which 

 it refers. It will be issued, along with the ' Proceedings,' free of extra charge, 

 to all Fellows who subscribe to the Publications ; 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 Shilling?, per annum, payable in advance. 



