[033-020] A CheckList of Illinois Algae with some Additions from Cook County
A CheckList of Illinois Algae with some Additions from Cook County Author: Britton, M.E.
[033-019] Phytoplankton Study of Lake Michigan
Phytoplankton Study of Lake Michigan Author: Damann, Kenneth E.
[033-018] Recent Trends in Plant Disease Control
Recent Trends in Plant Disease Control Author: Stevens, Neil E.
[033-017] The Pycnothyrium in the Taxonomic System of the Fungi Imperfecti
The Pycnothyrium in the Taxonomic System of the Fungi Imperfecti Author: Tehon, L.R.
[033-016] Cotyledon Numbers in Conifers
Cotyledon Numbers in Conifers Authors: Butts, Dorothy and Buchholz, J.T.
[033-015] Phloem Histology in Stigmarian Appendages
Phloem Histology in Stigmarian Appendages Author: Stewart, Wilson N.
[033-014] Note on Embryo Development in Hippuris
Author: Kaeiser, Margaret
[033-013] A Preliminary Report on the Comparative Anatomy of the Eucommiaceae
A Preliminary Report on the Comparative Anatomy of the Eucommiaceae Author: Tippo, Oswald
[033-012] Indian Trail Markers in Illinois
Indian Trail Markers in Illinois Author: Janssen, Raymond E.
[033-011] Prehistoric Aboriginal Pottery of the Peoria, Illinois Region
Prehistoric Aboriginal Pottery of the Peoria, Illinois Region Author: Schoenbeck, Ethel