12 



had lived in a healthy and vigorous condition for a period of 

 some eight years in the private grounds of its owner, Dr. John 

 K. Butter, of Cannock, Staffordshire. 



The next Meeting of the Society for Scientific Business will 

 be held on Tuesday, May 13th, 1919, at 5.30 p.m., when the 

 following comnumications will be made : — 



Lt.-Col. S. MONCKTON COPEMAX, F.R.S., F.Z.S . 



Experiments on Sex Determination (illustrated by lantern- 

 slides). 



ISToEL Tayler, B.Sc. 



A unique Case of Asymmetrical Duplicity in the Chick. 



The following Papers have been received : — 

 Claude Morley, F.Z.S . 



Equatorial and other Species and Genera of African 

 Ichneumonidse. 



Ernest E. Unwin. 



On the Structure of the Respiratory Organs of the Terrestrial 

 Isopoda. 



J. T. Cunningham, M.A. 



Result of a Mendelian Experiment on Fowls, including the 

 Production of a Pile Breed. 



C. W. Andrews, D.Sc, F.R.S., F.Z.S. 



A Description of New Species of Zeuglodons and Leathery 

 Turtle from the Eocene of Southern Nigeria. 



