Yazar
Otis W Caldwell
24 cilt bulundu.
Cilt sonuçları
Handbook of plant morphology
Otis W. Caldwell · H. Holt and Company
190 sayfa · 1904
Botany / Laboratory manuals / Plant morphology
Then & now in education, 1845: 1923
Otis W. Caldwell, S. A. Courtis · World book company
400 sayfa · 1924
Education / Educational tests and measurements
The life-history of Lemna minor ..
Otis W. Caldwell · The University of Chicago press
30 sayfa · 1899
Lemna minor / Life cycles / Morphology / Plant life cycles / Plant morphology
Then & now in education, 1845
Otis W. Caldwell · World book company
400 sayfa · 1924
Education / Educational surveys / Educational tests and measurements
An experimental study of superstitions and other unfounded beliefs as related to certain units of general science
Otis W. Caldwell · Bureau of publications, Teachers college, Columbia university
138 sayfa · 1932
Science / Study and teaching / Superstition / Common fallacies