2 
IOWA ACADEMY OF SCIENCE 
there is no printer so thoroughly conversant with all the sciences that he 
can always correctly interpret pen marks that presumably are intended to 
convey some thought or impart some fact in some one of the fields of science 
entered by the members of the Academy; and I know there is no member 
of the Academy sufficiently grounded in all the sciences to be able to do this. 
The rule with reference to the submitting of a brief abstract with each 
title is disregarded to a very considerable degree. It is to me a question 
whether such a rule be advisable. But so long as the Academy has the rule 
it should be enforced. An item of but little importance is the name of the 
Academy; is it the Iowa Academy of Sciences or the Iowa Academy of 
Science? The minutes seem to show that when the name was changed from 
The Iowa Association for Scientific Research that the new name adopted was 
The Iowa Academy of Science; but the plural form of the word, sciences, is 
that most frequently used. 
For the sake of uniformity, it seems advisable that the Academy should 
adopt some ruling with reference to the capitalization of scientific names de- 
rived from proper names. In editing Vol. XIII the secretary perhaps rather 
arbitrarily changed the capitalized specific names to make them begin with 
lower case letters, believing it better to have uniformity in the volume in this 
respect. Respectfully submitted, 
L. S. ROSS, Secretary. 
MINUTES OF THE TWENTY-FIRST ANNUAL MEETING OF THE IOWA 
ACADEMY OF SCIENCE. 
The sessions of the Academy were held at Drake university, Des 
Moines, Iowa, in the Physics lecture room, April 26 and 27, 1907. 
At 1:30 o’clock P. M., April 26th, the president of the Academy, 
Professor C. 0. Bates of Coe college, called the meeting to order. 
During the two days’ session the following program was presented : 
PROGRAM. 
President’s address, The Influence of Science in Training Ideals. . . .C. 0. Bates 
1. Exposures of Iowan and Kansan (?) Drift, East of the Usually 
Accepted Boundary Line of the Driftless Area Ellison Orr 
2. (a) Volcanic Phenomena Around Citlaltepetl and Popocatepetl, 
Mexico. 
(b) Significance of the Mesa de Maya. 
(c) Tertiary Terranes of New Mexico Charles R. Keyes 
3. A Visit to the Panama Canal (Illustrated) Grant E. Finch 
4. The Channel of the Mississippi Between Lansing and Dubuque 
(Illustrated) S. Calvin 
5. (a) Recent Alluvial Changes in Southwest Iowa. 
(b) Effect of Certain Characteristics of Formations Upon Rate of 
Their Erosion J. E. Todd 
6. The Loess of the Missouri River (Illustrated) B. Shimek 
