86 Bulletin Wisconsin Natural History Society. [Vol. 7, Nos. 3-4. 



No other unfinished business being on hand, Dr. Graenicher then 

 opened the evening's symposium on the House-Fly, with the topic : 

 "The Dijatera and the Systematic Position of the House-Fly." Dr 

 Graenicher spoke briefly of the importance the Diptera have acquired 

 -within the last decade. Beginning with the yellow fever mosquito and 

 the tse-tse fly down to the house-fly he told of the danger of these 

 insects and the fight against them. He explained the systematic posi- 

 tion of the house-fly, its life history, and described its near relatives, 

 such as the stable-fly, the horse-fly and others. 



Mr. H. Clowes then gave a general talk on "The House-Fly: Its 

 Economy and Anatomy. The anatomy was shown in a series of lantern 

 slides made from drawings by the speaker. Several models illustrating 

 the life history were presented to the audience. Mr. Clowes correlated 

 the anatomy of the house-fly to its capacity for spreading disease- 

 bearing germs. Potential multiplication was cited as of the greatest 

 economic importance and was shown vividly in a number of striking 

 figures. Among remedies cleanliness was mentioned as the most im- 

 portant. 



After the lectures President Barth appointed the following consti- 

 tutional or standing committees : 



1. On Program for Regular Meetings. 



Chairman — Henry L. Ward. 



Senior member — Dr. S. Graenicher. 



Junior member — Miss Helen Sherman. 



2. On Program for Section Meetings. 



Chairman — George W. Colles. 

 Senior member — Howland Eussel. 

 Junior member — I. N. Mitchell. 



3. Publishing Committee. 



Chairman — Dr. George W. Peckham. 

 Senior member- — Henry L. Ward. 

 Junior member — Charles T. Brues. 

 Upon motion the meeting then adjourned. 



Milwaukee, July 8, 1909. 

 Meeting of the combined sections. 

 President Barth in the chair. 22 people present. 

 Minutes of the last section meeting read and approved. 



