134 DAVENPORT ACADEMY OP XATURAL SCIENCES. 



Prof. Josua Lindahl exhibited some dissections of Helix jyomatia^ 

 in water and under the microscope, and gave an interesting explana- 

 tion of the internal anatomy of the species. 



JuxE 25th, 1880. — Regular Meeting. 



The President, Mr. W. H. Pratt, in the chair. Six members pres- 

 ent. 



Mr. C. T. Dahm, Rev. A. Blumer, Mrs. W. A. Nourse, Mrs. W. P. 

 Hall, Miss Grace R. Hall and Mrs. G. W. Jenkins were elected regu- 

 lar members, and Mr. James Shaw and Dr. Henry Shinier, of Mount 

 Carroll, Ills., as corresponding members. V 



September 24:Th, 1880. — Regular Meeting. 



The President, Mr. W. H. Pratt, in the chair. Thirty persons 

 present. 



Mr. W. C. Egan, Chicago, 111.; Prof. H. H. Babcock, Chicago, 111.; 

 Mrs. R. E. Latham, Lincoln, 111.; and Mrs. C. H. Perry, Keokuk, 

 Iowa, were elected corresponding members. 



Dr. Farquharson gave a very complete and interesting report of his 

 recent visit to Boston and the meeting of the American Association 

 for the Advancement of Science ; and of the exhibition there of the 

 Academy's collection of prehistoric relics and the great interest man- 

 ifested in them by the scientific people collected there. 



October 22d, 1880. — Arch^ological Section. 



Mr. W. H. Pratt in the chair. Three members present. 



Mr. Gass gave a- verbal account of several explorations which had 

 not been previously reported, on accovuit of the expectation of contin- 

 uing the investigations at some other time, for which, however, no op- 

 portunity had occuiTed. 



He gave a special description of a group of nine low conical mounds 

 on the bluffs of the Wapsipinicon river, about three miles east of 

 Wheatland, Clinton county, Iowa, which he visited in August, 1879. 

 He opened four of these mounds, which were each about two feet in 

 height and fifteen fer^t in diameter. They were composed of a mix- 

 ture of black soil and clay, but exhibited no evidences of fire, and con- 

 tained no bones or other relics. 



