Search

Search Results

Start Over Keywords PAGS Progress Reports
« Previous | 1 - 10 of 212 |

The Age and Origin of the Earth

V1 published
Creators
  1. Commonwealth of Pennsylvania
  2. Ashley, George H.
Deposited September 24, 2014
Access
Open Access

Anthracite Culm and Silt

V1 published
Creators
  1. Sisler, James D.
Deposited September 24, 2014
Access
Open Access

Anthracite Reserves

V1 published
Creators
  1. Ashley, George, H.
Deposited September 17, 2014
Access
Open Access

Bituminous coal reserves in Pennsylvania

V1 published
Creators
  1. John F. Reese
Deposited September 24, 2014
Access
Open Access

Bog-Iron Ore

V1 published
Creators
  1. Corbin, J. Ross
Deposited September 24, 2014
Access
Open Access

Bradford Oil Field (Preliminary Report)

V1 published
Creators
  1. Chas. R. Fettke
Deposited September 17, 2014
Access
Open Access

Brown Iron Ores in Pennsylvania

V1 published
Creators
  1. J. Ross Corbin
Deposited September 24, 2014
Access
Open Access

Calcareous Marl in Pennsylvania South of the Terminal Moraine

V1 published
Creators
  1. J. B. R. Dickey
Deposited September 24, 2014
Access
Open Access

The Canadian System

V1 published
Creators
  1. Ashley, George H.
Deposited September 24, 2014
Access
Open Access

The Canadian System

V1 published
Creators
  1. Ashley, George H.
Deposited September 17, 2014
Access
Open Access