QUEKETT MICROSCOPICAL CLUB. 441 



Mr. Scoiirfield drew attention to this comparison, and stated 

 that the European species were also to be found in Australia. 



The President then proposed a vote of thanks to Prof. West 

 for his valuable and interesting contribution. 



At the 534th Ordinary Meeting of the Club, held on May 14th,. 

 1918, the President, Dr. A. B. Kendle, M.A., F.R.S., F.L.S., in 



the chair, the minutes of the meeting held on April 9th were 

 read and confirmed. 



Messrs. Geo. Thomas Ilollis and Edgar W. F. Browning were' 

 balloted for and duly elected members of the Club ; six pro- 

 posal forms were read for the first time. 



Dr. Kendle said there had been some discussion about the 

 method of informing members of the subjects of forthcoming 

 papers ; he said that it was not always possible to announce 

 these beforehand, but that when they were known in time they 

 were announced in the English Mechanic, and notices were also 

 displayed in the windows of some of the principal opticians. 



The Secretary announced that the next Ordinary Meeting 

 would be on June 11th, and that there would be a Gossip Meeting 

 on May 28th, and an excursion to Hanw^ell and Greenford on 

 May 25th. 



The President then called upon Mr. F. Martin Duncan to 

 deliver his address on " Insects as Transmitting Agents in 

 Disease." 



Mr. Martin Duncan said that this branch of entomology was 

 a comparatively recent study. He dealt very briefly with the 

 housefly as a disease-carrier, and stated that the blowfly, although 

 occasionally a carrier, is not so dangerous. The flesh fly, easily 

 distinguished by its striking markings, has been causing trouble 

 on the Western Front by laying its eggs in wounds. This fly is 

 very persistent in attacking meat, and will drop its larvae through 

 the gauze covers which are sometimes used as a protection. The 

 liting flies are more important. Anthrax has been communicated 

 to man through the bite of a tabanid fly whose mouth- parts were 

 contaminated by its having bitten an infected animal. In Africa, 

 Trypanosoma gambiense (the protozoon which causes sleeping 

 sickness) is carried from infected persons to others by the biting 

 tsetse flies, Glossina ■palpalis and G. morsitans. These flies frequent 



