182 Bulletin Wisconsin Natural History Society [Vol. 13, No. 4 
March 25, 1915. 
Meeting called to order by President Barth. 
Minutes of previous meeting read and approved. 
The principal feature of the evening’s program was the lecture by Pro- 
fessor Pearse of the University of Wisconsin on “Success from a Biologist’s 
Point of View.” 
He developed the thought that success consists in the adaptation to 
the ever changing conditions, and therefore that those forms succeeded 
best which are plastic and not too specialized. 
Professor Pearse was tendered a vote of thanks for his interesting and 
instructive lecture. 
On motion the meeting adjourned. 
March 11, 1915. 
Meeting opened by reading minutes of previous meeting which, after 
correction made by Mr. H. Russel, were approved. 
Program for the evening was rendered as given in announcement. 
President Barth’s discussion was replete with new and interesting things, 
among which might be mentioned : 
1. That the digger wasps do not build a regular form of nest, but still a 
characteristic one. 
2. That the sting of the wasps varies in the same species. 
3. In some species there is often a great difference in the size of the nest, 
in one species being from 7 cm. to 43 cm. 
Mr. Lotz’s description of his visit to the Pueblo of Acoma was very in- 
teresting. The pictures and models presented by him were very instruc- 
tive. 
“The North American Indians” by Mr. Brah was full of good things. 
His treatment while terse, time considered, was comprehensive. 
The talk was profusely illustrated by slides giving environment, cus- 
toms and life of the Indians. 
On motion the meeting adjourned. 
April 8, 1915. 
Minutes of previous meeting read and approved. 
Mr. George West gave a very valuable discussion of the “The Mound at 
Aztalan and its Relation to the Indians.” 
He gave reason for placing the advent of man in Wisconsin in the period 
between the two glacial epochs. 
He considers the mound at Aztalan as built by the Indians and probably 
ceremonial in its function. Mr. West thinks that none of the mounds of 
Wisconsin are over 800 years old. 
Mr. Werner gave a very practical discussion on the question “Is the 
Study of Zoology Worth While?” In his talk he clearly and forcefully set 
forth the value of this study for mental discipline, direct practical results 
and as a source of pleasure. 
Mr. Pope illustrated his subject “Some Practical Application of Zool- 
ogy/’ by its application to the oyster culture. He gave the “Drill” as the 
