Illinois State Geological Survey Manuscript A study of the petrography and origin of Illinois underclays. Brown County IL
Dates
Dataset Reference Date
2019-11-21
Info Date
1931
Summary
Illinois State Geological Survey Manuscript County: Brown Title: A study of the petrography and origin of Illinois underclays. Author: Victor T. Allen Call Number: MS Allen, V.T. #2 Location Record 13 of 16
Summary
Illinois State Geological Survey Manuscript County: Brown Title: A study of the petrography and origin of Illinois underclays. Author: Victor T. Allen Call Number: MS Allen, V.T. #2 Location Record 13 of 16