[020-22] The Starling
The Starling Author: Hufford, G.N.
[020-21] A Preliminary Report on an Ecological Problem in the Illinois River Valley
A Preliminary Report on an Ecological Problem in the Illinois River Valley Author: Turner, Lewis M.
[020-19] The Fairy Shrimps of Illinois
The Fairy Shrimps of Illinois Author: Van Cleave, H.J.
[020-18] The Coati
The Coati Author: Givens, H.V.
[020-17] Marine Aquaria for High Schools and Colleges
Marine Aquaria for High Schools and Colleges Author: Thomas, Lyell J.
[020-16] What High School Students Eat
What High School Students Eat Author: Bonnell, Clarence
[020-15] Modifications and Associated Structures of the First Three Vertebrae in the Buffalo Fish Ictiobus urus*
Modifications and Associated Structures of the First Three Vertebrae in the Buffalo Fish Ictiobus urus* Author, Adams, L.A.
[020-14] The Ligneous Flora of Richland County, Illinois
The Ligneous Flora of Richland County, Illinois Author: Ridgway, Robert
[020-13] The Effect of Vitamin (B) and (C) Deficiency on the Mechanics of the Intestinal Tract
The Effect of Vitamin (B) and (C) Deficiency on the Mechanics of the Intestinal Tract Author: Plummer, Beulah A.
[020-12] The Flora of the Right of Way of the Illinois Central Railway: Waddams to East Dubuque
The Flora of the Right of Way of the Illinois Central Railway: Waddams to East Dubuque Author: Pepoon, H.S.