51.
Reports on the Combustible Qualities of the Semi-Anthracites of the Zerbes's Run Coal Fields...
by Rogers, Henry Darwin, Hayes...
ISBN: 9781340759063
List Price: $21.95
OUT OF STOCK
See Availability on Amazon52.
Edinburgh New Philosophical Journal : Exhibiting a View of the Progressive Discoveries and I...
by Jameson, Robert, Sir Willia...
ISBN: 9781346507323
List Price: $27.95
OUT OF STOCK
See Availability on Amazon53.
Edinburgh New Philosophical Journal : Exhibiting a View of the Progressive Discoveries and I...
by Jameson, Robert, Sir Willia...
ISBN: 9781347001172
List Price: $28.95
OUT OF STOCK
See Availability on Amazon54.
Edinburgh New Philosophical Journal : Exhibiting a View of the Progressive Discoveries and I...
by Jameson, Robert, Sir Willia...
ISBN: 9781347045275
List Price: $28.95
OUT OF STOCK
See Availability on Amazon55.
Annual Report on the Geological Survey of Pennsylvania, Volumes 1-6
by Rogers, Henry Darwin
ISBN: 9781344833899
List Price: $32.95
OUT OF STOCK
See Availability on Amazon56.
The Edinburgh New Philosophical Journal: Exhibiting a View of the Progressive Discoveries an...
by Henry Darwin Rogers, Robert...
ISBN: 9781357426729
List Price: $29.95
OUT OF STOCK
See Availability on Amazon57.
The Edinburgh New Philosophical Journal: Exhibiting a View of the Progressive Discoveries an...
by Henry Darwin Rogers, Robert...
ISBN: 9781357335960
List Price: $29.95
OUT OF STOCK
See Availability on Amazon58.
Atlas of the United States of North America
by Rogers, Henry D. (Henry Dar...
ISBN: 9781360453217
List Price: $12.95
OUT OF STOCK
See Availability on Amazon59.
Atlas of the United States of North America
by Rogers, Henry D. (Henry Dar...
ISBN: 9781360453224
List Price: $22.95
OUT OF STOCK
See Availability on Amazon60.
Geology of Pennsylvania; a Government Survey; Volume 2
by Geological Survey of Pennsy...
ISBN: 9781362592464
List Price: $33.95
OUT OF STOCK
See Availability on Amazon61.
Geology of Pennsylvania; a Government Survey; Volume 2
by Geological Survey of Pennsy...
ISBN: 9781362592433
List Price: $24.95
OUT OF STOCK
See Availability on Amazon62.
Geology of Pennsylvania; a Government Survey : With a General View of the Geology of the Uni...
by Pennsylvania State Geologis...
ISBN: 9781362623649
List Price: $33.95
OUT OF STOCK
See Availability on Amazon63.
Geology of Pennsylvania; a Government Survey : With a General View of the Geology of the Uni...
by Pennsylvania State Geologis...
ISBN: 9781362623632
List Price: $24.95
OUT OF STOCK
See Availability on Amazon64.
Geology of Pennsylvania; a Government Survey : With a General View of the Geology of the Uni...
by Pennsylvania State Geologis...
ISBN: 9781362605645
List Price: $24.95
OUT OF STOCK
See Availability on Amazon65.
Geology of Pennsylvania; a Government Survey : With a General View of the Geology of the Uni...
by Pennsylvania State Geologis...
ISBN: 9781362605652
List Price: $33.95
OUT OF STOCK
See Availability on Amazon66.
The Geology of Pennsylvania, 1858, Vol. 1 of 2: A Government Survey (Classic Reprint)
by Rogers, Henry Darwin, Henry...
ISBN: 9781330671740
List Price: $23.57
OUT OF STOCK
See Availability on Amazon67.
The Geology of Chester CountyAfter the Surveys of Henry D. Rogers, Persifor Frazer
by Persifor Frazer , Charles E...
ISBN: 9789333147606
OUT OF STOCK
See Availability on Amazon68.
The Edinburgh New Philosophical Journal: Exhibiting a View of the Progressive Discoveries an...
by Henry Darwin Rogers, Robert...
ISBN: 9781355743453
List Price: $28.95
OUT OF STOCK
See Availability on Amazon69.
The Edinburgh New Philosophical Journal: Exhibiting a View of the Progressive Discoveries an...
by Henry Darwin Rogers, Robert...
ISBN: 9781357590307
List Price: $28.95
OUT OF STOCK
See Availability on Amazon70.
The Edinburgh New Philosophical Journal: Exhibiting a View of the Progressive Discoveries an...
by Henry Darwin Rogers, Robert...
ISBN: 9781357470401
List Price: $29.95
OUT OF STOCK
See Availability on Amazon71.
The Edinburgh New Philosophical Journal: Exhibiting a View of the Progressive Discoveries an...
by Henry Darwin Rogers, Robert...
ISBN: 9781357292409
List Price: $28.95
OUT OF STOCK
See Availability on Amazon72.
The Edinburgh New Philosophical Journal: Exhibiting a View of the Progressive Discoveries an...
by Henry Darwin Rogers, Robert...
ISBN: 9781357417666
List Price: $28.95
OUT OF STOCK
See Availability on Amazon73.
The Edinburgh New Philosophical Journal: Exhibiting a View of the Progressive Discoveries an...
by Henry Darwin Rogers, Robert...
ISBN: 9781357168278
List Price: $27.95
OUT OF STOCK
See Availability on Amazon74.
The Edinburgh New Philosophical Journal: Exhibiting a View of the Progressive Discoveries an...
by Henry Darwin Rogers, Robert...
ISBN: 9781357115036
List Price: $28.95
OUT OF STOCK
See Availability on Amazon75.
The Edinburgh New Philosophical Journal: Exhibiting a View of the Progressive Discoveries an...
by Henry Darwin Rogers, Robert...
ISBN: 9781357067618
List Price: $28.95