A Geologic Time Scale 1989

By W. Brian Harland, Alan G. Smith, David G. Smith, Richard L. Armstrong, Allen V. Cox, Lorraine E. Craig

A Geologic Time Scale 1989

By W. Brian Harland, Alan G. Smith, David G. Smith, Richard L. Armstrong, Allen V. Cox, Lorraine E. Craig

A Geologic Time Scale 1989 Wallchart Cambridge Earth Science

By Alan G. Smith, Walter Brian Harland, Richard L. Armstrong, David G. Smith Undifferentiated, Allen V. Cox, Lorraine E. Craig

Snow and Climate

By

The extent and variability of seasonal snow cover are important parameters in the climate system, due to their effects on energy and moisture budgets, and because surface temperature is highly depe...

God alone knows which was right

By Richard L. Armstrong

"According to legend, William H. Terrill had the phrase "God Alone Knows Which Was Right" inscribed on a monument to honor two of his fallen sons, generals who fought on opposite sides during the C...

11th Virginia Cavalry

By Richard L. Armstrong

Battle of McDowell The Virginia Civil War battles and leaders series

By Richard L. Armstrong

The Battle of Lewisburg

By Richard L. Armstrong

25th Virginia Infantry and 9th Battalion Virginia Infantry

By Richard L. Armstrong

Seventh Virginia Cavalry

By Richard L. Armstrong