Megafossil Zonation of the Lingle and St. Laurent Limestones (Middle Devonian) of Southern Illinois and Southeastern Missouri Archives

[073-26] Megafossil Zonation of the Lingle and St. Laurent Limestones (Middle Devonian) of Southern Illinois and Southeastern Missouri

Fraunfelter, George H. Megafossil Zonation of the Lingle and St. Laurent Limestones (Middle Devonian) of Southern Illinois and Southeastern Missouri 073-26-print

Tag: Megafossil Zonation of the Lingle and St. Laurent Limestones (Middle Devonian) of Southern Illinois and Southeastern Missouri

[073-26] Megafossil Zonation of the Lingle and St. Laurent Limestones (Middle Devonian) of Southern Illinois and Southeastern Missouri

[09-05] Photographing Flowers and Insects

[09-04] Tests on the Comparative Friability of Illinois Coals and their Practical Application

[09-03] Purification of Sewage by Aeration in the Presence of Activated Sludge