6 
Bulletin Wisconsin Natural History Society. [Vol. 10, Nos. 1 & 2. 
Dr. P. H. Dernehl read a paper on “Some Recent Advances in Cell 
Study.” He exhibited some microphotographs taken of living animal 
cells in the course of indirect cell divisions. These pictures were taken 
by means of the ultra violet rays. 
On motion, the meeting then adjourned. 
Milwaukee, Wis., February 29, 1912. 
Regular meeting. 
Vice-President Dernehl in the chair. Ninety members present. 
Minutes of the last regular meeting read and approved. 
Prof. R. H. Denniston of the University of Wisconsin delivered 
the evening’s lecture on “Wisconsin Trees.” This lecture was illus¬ 
trated by numerous lantern slides. Prof. Denniston confined his 
remarks to the native trees of the state. After discussion by Drs. 
Graenicher and Bartlett, the meeting adjourned. 
Milwaukee, Wis., March 14, 1912. 
Meeting of the combined sections. 
Nine members present. President Barth in the chair. 
Minutes of the last section meeting read and approved. 
The secretary read a paper on “Trematode Parasites of Man and 
the Lower Animals.” Some specimens of the liver fluke, Distomum 
Hepaticum, were shown. Special stress was laid on the morphology 
of these animals. After a discussion, in which all those present took 
part, the meeting adjourned. 
Milwaukee, Wis., Marcn 29, 1912. 
Regular meeting. 
President Barth in the chair. Seventy-five persons present. 
Minutes of the last regular meeting read and approved. 
The president called the attention of the society to the joint meet¬ 
ing of the Wisconsin Archeological Society, Wisconsin Mycological 
Society, Wisconsin Natural History Society and the Wisconsin Academy 
of Sciences, Arts and Letters to be held at Madison April 4th and 5th. 
The application for membership of Mr. J. E. Mellish of Cottage 
Grove, Wisconsin, was received and referred to the Board of Directors.. 
Prof. M. F. Guyer of the University of Wisconsin delivered the 
evenings’ lecture on “Eugenics.” Prof. Guyer urged that some legisla¬ 
tion be enacted in Wisconsin similar to that, in force in Indiana and 
California for the prevention of the multiplication of those physically,, 
mentally and morally unfit for parenthood. 
The meeting then adjourned. 
