132 
Bi'Uctin ^y^sconsin Xatural History Society. [Vol. 6, Xos. 3-4. 
:Milwaukee, Maj' 13, 1908. 
Meeting of the combined sections. 
President Teller in the chair and 12 members present. 
The minutes of the last section meeting- were read and approved. 
Mr. Eussel spoke on the classification of the genus Antennaria. 
He referred to the splitting up of the group into a considerable nunaber 
of species of doubtful validity, many of which he considered must be 
surely rated as subspecies or varieties when the forms and their 
geographical distribution were better known. He exhibited fresh 
specimens of two of the more sharply defined t\'pes sho^^-ing in detail 
the characters which are used for their separation. 
Dr. Graenicher followed vriih a consideration of the insect visitors 
of the same plants in this vicinity and those observed in Europe. This 
was followed by a more general discussion of the types if insect visitors 
which pollinate various Compositae in our region. 
Milwaukee. May 27, 1908. 
Eegular monthly meeting of the society. 
President Teller in the chair and about 60 persons present. 
The minutes of the last regular monthly meeting were read and 
approved. 
The names of J. F. Wm. Inbusch, Henr\' A. Koch, Bernhard S. 
Seheftels, and Max Griebsch were proposed for membership and sub- 
sequently passed upon by the board of directors. 
ISIrs. H. A. J. Upham then read a paper on the geology and topogra- 
phy of the Dells of the Wisconsin Eiver. 
She described the topography of the country' immediately surround- 
ing this very interesting region and showed the relation of this drift- 
less area to the surrounding glaciated country. The form of the two 
quartzite ranges near Kilbourn City and the way in vrhich they have 
affected the drainage in the vicinity was next considered in addition 
to a description of several of the more interesting parts of the Dells 
proper. The second part of the paper was devoted to a discussion of 
the probable origin of the sandstone rocks, their partial metamor- 
phosis into quartzite and subsequent weathering with final capping by 
more recent limestone and sandstone. The paper concluded ^vith an 
explanation of the origin of this driftless area and the probable change 
in the course of the "Wisconsin Eiver due to the deposits of glacial drift 
in its former course. 
The lecture was illustrated hy a number of large photographs of 
the region. 
