The next Meeting of the Society for Scientific Business will 

 be held on Tuesday, April 8th, 1919, at 5.30 p.m., when the 

 following communications will be made : — 



Dr. F. E. Beddard, F.R.S., F.Z.S. 



Exhibition of, with remarks on, three foetal Sperm-Whales. 



Lancelot T. Hogben, B.A., B.Sc. 



The Progressive Reduction of the Jugal in the Mammalia. 

 (Communicated by Mr. H. W. TJnthank, B.A., B.Sc, F.Z.S.) 



G. A. BouLEKGER, F.R.S., F.Z.S . 



Description of Two new Lizards and a new Frog from the 

 Andes of Colombia. 



The following have been arranged : — 



April 29th, 1919. Dr. W. T. Calman, D.Sc, F.Z.S. 



Exhibition of Marine Boring Animals. 



May 13th, 1919. Lt.-Col. S. Monckton Copeman, F.R.S., F.Z.S. 



Experiments on Sex Determination (illustrated by lantern- 

 slides). 



The Publication Committee desire to call the attention of 

 those who propose to ofier Papers to the Society, to the great 

 increase in the cost of paper and printing. This will render it 

 necessary for the present that papers should be condensed, and 

 be limited as far as possible to the description of new results. 



Communications intended for the Scientific Meetings should 

 be addressed to 



P. CHALMERS MITCHELL, 



Secretary. 

 Zoological Society of London, 



Regent's Park, London, N.W. 8. 

 March 25th, 1919. 



