4 Bulletin of Wisconsin Natural History Society. Vol. 1, No. 1. 
•not correspondingly forward. Spiders and their webs were 
exceedingly scarce. A new fact in regard to the tortoise 
shell or Cassia beetle had there come to his notice. A specimen 
he had captured had changed immediately from yellow-gold to a 
yellow-red in color, in which state it almost exactly resembled the 
two-spotted lady bug, regaining its usual color when left undis- 
turbed. As the lady bug is an insect, especially distasteful to 
birds and lizards, the doctor suggested that the alDove fact might 
be an instance of protective mimicry in the Cassia beetle. 
Mr. C. E. Brown also mentioned an experience of his in which 
the same change of color had taken place immediately after they 
had died, when put in a cyanide bottle. 
Mr. Phillip Wells read a paper describing an excursion made 
the previous Sunday through three miles of woodland, near Elm 
Grove, Wis., in search of morrels and mushrooms. About thirty 
species of flowers were mentioned as being observed on the trip. 
The event of the day was the finding of a flower of the showy 
Orchis (Orchis spectabilis) — a flower which Mr. Wells said was 
identical in structure with the orchid (Orchis inascula) figured by 
Chas. Darwin in his work, ''The Fertilization of Orchids." 
The following were elected to membership : Mr, Chas. E. 
Monroe, Mr. W. P. Caine and Mr. Herbert Clowse. 
Mr. F. Rauterberg was transferred from the list of active 
members to the honorary list, and Prof. Marshall, of the Univer- 
sity of Wisconsin, was made an honorary member of the society. 
The question whether grooved stone axes were peculiar to 
Wisconsin was brought up by C. E. Brown, and both he and Mr. 
Ellsworth stated they had so far been unable to find any evidence 
to the contrary. 
Thursday, JOne 22, 1899. 
In the lecture room of Public Museum, Dr. Geo. W. Peckham 
in the chair, and twenty-five members present. 
Mr. C. H. Doerflinger, the director of the ethnological section, 
read the report of a survey that had been made during the week, 
of the Indian mounds near the cement works, north of the city, 
and also exhibited photographs of the locality. Mr. Doerflinger 
stated that he had had access to the unpublished papers of the late 
Dr. Lapham, author of the" Antiquities of Wisconsin, "but could find 
no evidence that the latter had ever known of the existence of 
these mounds. Later in the meeting a letter to the same effect 
from Miss Mary J. Lapham. of Oconomowoc, was read by Mr. 
E. E. Teller. 
