28 
IOWA ACADEMY OF SCIENCE 
Shales in Delaware County (2:40). Many of the volumes of the Iowa Geological 
Survey contain valuable papers from his pen, which it will not be necessary 
to name in this connection. 
His retiring address as president of the Iowa Academy was delivered at Iowa 
City on April 30, 1909. The title of his paper, “The Work of the Iowa Geological 
Survey,” w’as a fitting close to his career as a member of the Academy and his 
work in Iowa, since his death occurred on April 17, 1911. 
Prof. Calvin was one of my early acquaintances in the Academy. I always 
found him to be an inspiring friend and a lovable man, every inch a man who 
loved truth and justice, and who was always considerate. He was more than 
a scientist; he was a noble type of man for the University and the community. 
Of his membership in the Academy we may well feel proud. It has given us 
strength and dignity. AVhen some future historian shall write a history of 
science in Iowa, a high place will be given to Samuel Calvin, teacher, in- 
vestigator, and citizen. 
Professor J. E. Todd, whose kind and genial presence was always welcome 
in the early days of the Academy, was well known by the older members. I knew 
of him while a student, through his publication of botanical papers on the 
pollination of flowers. His paper on The Cross-fertilization of Solanum rostratum 
elicited a commendatory letter from Charles Darwin, one of the last he ever 
wrote. His paper on “Directive Coloration in Animals” was very favorably 
commented on by Prof. Romanes. In those days I did not know that Prof. Todd 
was a geologist, I knew him as a botanist. Geology has been his chief life 
work. 
Prof. J. E. Todd was born in Clarksfleld, Ohio, Feb. 11, 1846, graduated from 
Oberlin, A. B., in 1867, A. M. in 1870; attended Sheffield Scientific School, Yale, 
1870; Summer School of Geology, Harvard, 1875; professor of Natural Science, 
Tabor College, 1871-1892; State Geologist, South Dakota, 1893-’03; Adjunct Pro- 
fessor, Beloit College, 1881-1883; Assistant Professor, University of Kansas 
since 1907. 
He has published reports in the Minnesota, Missouri, South Dakota and 
U. S. Geological surveys. Prof. Todd considers the Elk Point, the Aberdeen 
and Redfield folios his best geological work. In addition. Prof. Todd has 
published many other papers, among which are New Light on Origin of Loess, 
and Recent Alluvial Changes in Southwestern Iowa. These papers are valuable 
for the thorough-going manner in which the subjects are considered. 
The Academy is grateful to Prof. Todd who stimulated science in Tabor 
College in the early scientific days of Iowa; he has added to the influence of 
genuine scientific work in South Dakota, and is now inspiring the young 
geologists in the University of Kansas. 
The merits of the work of Professors Calvin and Todd are recognized in 
Cattell's American Men of Science as both are starred because of their achieve- 
ments in geology. 
HERBERT OSBORN. 
Of the charter members of the Academy no one gave more of his time and 
energy to the work than did Professor Herbert Osborn. He was president of 
the Academy in 1887, and secretary-treasurer from 1890-1898. His chief work 
has been along entomological and zoological lines, .although at one time, while 
