188 



Mr. C. F. Rousselet : Mounted specimens of Lacinularia 

 socialis, male and female. 



Mr. T. G. Kingsford : Proboscis of female gnat, showing 

 lancets. 



Mr. D. J. Scourfield : Sida crystallina, taken at the Club's 

 excursion to the East London Waterworks. A very interesting 

 feature of this species is the complex gland at the back of the 

 head by which the animal attaches itself, usually head down- 

 wards, to weeds, etc. 



Mr. L. O. Grocock : Oogonia and antheridia of Chai;a, the 

 antheridia showing the cells in which the spermatozoids are 

 developed. 



