This early geological map of the state of Connecticut by J.G. Percival is accompanied by an extensive 495 page report. The map displays geological formations by dotted lines with the primary formations marked by capital letters. In addition to the geology, the map shows watersheds, cities and town boundaries. The report, which was a result of an $100,000 appropriation by the state's legislature, provides a very detailed account of the geologic structure of the state. Hardbound, 8vo with embossed cloth covered boards and gilt title on spine.

References: Marcou & Marcou #205.

Condition: B

The map has been trimmed close to the neatline all around with two faint spots, a bit of toning along one fold, and some minor creasing adjacent to the horizontal fold. Text is very good with light toning and only very occasional foxing. A previous owner's signature is present on the front pastedown. Covers have light wear with bumped edges.