Category Archives: 1939
How Engineers Use Basic Scientific Facts – Illustrated by a Concrete Example Author: Ruche, A.L.
A High Voltage Neutron Source Authors: Haworth, L.J. and Manley, J.H.
Further Experiments with Singing Tubes Author: Knipp, Charles T.
A Novel Homemade Electrostatic Generator and Zeleny Electroscope Assembly. Author: Eaton, D.L.
Experimental Production of Vortex Rings Author: Bockstahler, Lester I.
The Covel Conglomerate a Guide Bed in the Pennsylvanian of Northern Illinois Author: Willman, H.B.
Progress in Geologic Mapping of Illinois 1839-1939 Author: Weller, J. Marvin
The Age of the LaSalle Anticline Author: Payne, J. Norman
Some Geological Factors in the Location and Construction of the Lake Springfield Dam Author: Ekblaw, George E.