Bretz in the 1920's - New Narratives
49:44
Jeff Tepper: More Geochemistry
9:35
You are not Alone
1:56:29
J. More Rollback Magmas
52:03
Who was J Harlen Bretz?
1:44:46
I. Rollback Magmas
1:18:08
Stephen Wolfram Readings: On the Nature of Time
1:06:44
Oregon's Coast Uncovered Part 2: Coastal Geomorphology and Oceanography of Oregon
2:33:02