66 
Bulletin Wisconsin Natural History Society. [Vol. 5, No. 2. 
annually nominate a person for this office who shall be preferred by 
the Mayor for appointment, ]Mr. Teller asked that the Society take 
action on the matter. 
Dr. Case said that this matter would require mature deliberation 
and moved that it be referred to the Board of Directors. Motion was 
seconded and passed without further discussion. 
There being no further business, Mr. C. T. Brues addressed the 
meeting on the "Eole Played by Insects in the Transmission of Certain 
Disease of Man and the Higher Animals." The speaker referred to 
the wonderful progress made during recent years toward an under- 
standing of this matter and outlined the discovery, investigation and 
final proof of the connection between mosquitoes and malarial and 
yellow fever. He described the life history of the mosquito and of 
the malarial parasite which is the direct cause of malaria. The relation 
of the abundance of mosquitoes to proper drainage and sanitation was 
referred to briefly before turning to a consideration of certain insect- 
borne diseases of animals caused by small parasites known as trypa- 
nosomes. He closed his remarks with a discussion of the cause of 
the so-called Texas fever of cattle and the importance of this disease 
in the economic development of the southern part of the United States. 
The meeting then adjourned. 
directors' meeting. 
After the regular meeting, a Directors' meeting was held and the 
name of Edw. W. Windfelder chosen for nomination as member of the 
Board of Trustees of the Public Museum. The secretary was ordered 
to transmit this decision to the ]\Iayor. 
Milwaukee, Feb. 10, 1907. 
Meeting of the combined sections. 
President Teller in the chair, and the following members present : 
Miss Torelle, Messrs. Barth, Briies, Case, Colles, Clowes, Doerflinger, 
Graenicher, Eussell and Ward. 
The secretary read the minutes of the last section meeting, which 
were approved. 
Dr. Case opened the discussion with a description of certain 
Permian reptiles which he had been studying and collecting for a 
number of years. He referred particularh^ to a species of Xaosaurus 
which had recently been mounted in the American Museum of Natural 
History. He told something of the history of the study of this peculiar 
