io6 



investigations were now being carried on in the state of S. Caro- 

 lina by the U.S. Public Health Service and the Bureau of Ento- 

 mology at Washington working in co-operation, and that the 

 entomologists engaged on this work were studying not only the 

 distribution of Simulium, but the character and habits of all 

 biting insects in pellagra centres. 



M. Andres said that Dr. Seebohm, who had travelled in 

 Egypt, had not, so far as he knew, found Simulium in Lower 

 Egypt, where however the pellagra disease was very common. 

 He thought he had found this fly only in Upper Egypt. 



H. Skinner suggested the necessity of studying the individual 

 distribution of cases of pellagra with a view to discovering whether 

 proximity were a factor, or played any part, in the distribution. 



IvAR Trägärdh said that in Sweden, where, especially in the 

 northern part, Simulium, was very common, pellagra was an 

 unknown disease. 



F. A. Lowe then read a paper entitled : 

 How TO Kill that Fly. 

 (No manuscript received. — Editors.) 



A. Bacot drew attention to the necessity of taking into 

 account, by sanitary authorities, the relation of temperature to 

 the length of life cycle in M. domestica, and the consequent need 

 for the collection of rubbish at shorter intervals than fourteen 

 days during the summer months. 



H. Skinner remarked that the house-fly was a disgrace to 

 humanity, and that the problem had been solved in civilised 

 communities. It was necessary to remove and destroy the eftete 

 material in which the larvae lived. 



The meeting then terminated. 



Sir N. J. Moore intended to read in this Section a paper on 



Recent Work in Economic Entomology carried out in 

 Western Australia; 



but was unavoidably prevented from attending the Congress. 

 The paper is printed in Vol. II., pp. 221-226. 



