[02-06] The Hardness of Illinois Municipal Water Supplies
The Hardness of Illinois Municipal Water Supplies Author: Bartow, Edward
[02-05] The Clay Seams (Horsebacks) in the Number 5 Coal Bed, Near Springfield, Illinois
The Clay Seams (Horsebacks) in the Number 5 Coal Bed, Near Springfield, Illinois Author: Savage, T.E.
[02-04] The Cliff Flora of Jo Davies County
The Cliff Flora of Jo Davies County Author: Pepoon, H.S.
[02-03] Some Observations on Robin Nests
Some Observations on Robin Nests Author: Charles, Fred L.
[02-02] The Vegetational History of a River Dune*
The Vegetational History of a River Dune* Author: Gleason, Henry Allen
[02-01] Native Trees of Morgan County
Native Trees of Morgan County Author: Smith, Isabel S.
[04-22] Present Condition of the State Museum of Natural History
Present Condition of the State Museum of Natural History Author: Crook, A.R.
[03-22] The Forest Associations of Northwestern Illinois
The Forest Associations of Northwestern Illinois Author: Pepoon, H.S.
[03-21] Observations on the Earthquake in the Upper Mississippi Valley, May 26, 1909
Observations on the Earthquake in the Upper Mississippi Valley, May 26, 1909 Author: Udden, J.A.
[03-19] Relic Dunes, a Life History
Relic Dunes, a Life History Author: Gates, Frank C.