PROCEEDINGS 
OF THE 
TWENTIETH ANNUAL SESSION 
OF THE 
IOWA ACADEMY OF SCIENCES. 
The twentieth annual meeting of the Iowa Academy of Science was 
held in the rooms of the Department of Botany of the Iowa State Col- 
lege at Ames, April 20 and 21, 1906. In the business session the follow'- 
ing matters of general interest v/ere presented. 
REPORT OF TPIE SECRETARY. 
TO THE MEMBERS OF THE IOWA ACADEMY OF SCIENCE: 
At the Nineteenth Annual Meeting of the Academy seven members 
were promoted to fellows and six new names were added to the list, 
making a total increase of thirteen to the number of fellows. At the 
same meeting three fellows were transferred to the list of correspond- 
ing members on account of their removal from the state. At present 
the membership of the Academy consists of sixty-eight fellows, sixty- 
six associate members and fifty-four corresponding members; making a 
total of one hundred and eighty-eight. So far as the secretary has 
learned, the ranks of the Academy have not been invaded by death 
since our meeting one year ago. 
Notwithstanding the fact that our total membership numbers twen- 
ty-nine more than one year ago, there is still need of earnest, aggres- 
sive work to increase and enlarge the influence of the Academy mem- 
bership. 
The copy for volume XII of the Proceedings of the Iowa Academy 
of Science was put into the hands of the printer the latter part of 
June and the edition was received from the Bindery and distributed 
about the last of July. The present plan of arranging the papers 
that make up the Proceedings makes it possible for us to furnish 100 
separates to the authors of the several articles at a very small cost 
to the Academy. The expense for 100 reprints of each paper in volume 
XII did not exceed $37.00. I wmuld recommend that in the arrange- 
ment with the State Printer for the 100 extra copies for the Academy, 
a better grade of paper should be purchased than that used for the 
state work. 
1 
