Worthens new geological map of Illinois [electronic resource] : prepared expressly for Campbell's Illinois atlas.
Saved in:
Online Access: |
Online Access |
---|---|
Main Author: | |
Corporate Authors: | , |
Other Authors: | , , |
Format: | Electronic Map Article |
Language: | English |
Published: |
[1870]
|
Subjects: |
Item Description: | Shows 8 geologic units (Tertiary, Coal measures, Lower Carboniferous, Devonian, Upper Silurian, Cincinnati Group, Trenton Limestone and Calciferous Group) Prime meridians: Greenwich and Washington. "Entered according to Act of Congress in the year 1869 by R.A. Campbell in the Clerks Office of the District Court for the Eastern District of Pennsylvania." Scanned raster image of original: 1 map : hand col. ; 30 x 24 cm. Original in the David Rumsey Collection; scanned by Cartography Associates. |
---|