Colures, Tropiques, Cercles Polaires, et Leurs Usages.
$95.00
Detailed 18th century French explanation on tropics, polar circles, and colures.
1 in stock
Description
This copperplate engraved sheet uses a central diagram to illustrate the spatial relationship between the equator, polar circles, tropics, and Solstitial colure. These reference points and their intersections are cornerstones in the celestial coordinate system, and text along either side of the image explains each in further detail, along with their use in mathematical calculations.
The image was prepared by Buy de Mornas, a professor of geography, and published by Louis-Charles Desnos in Paris.
Map Details
Publication Date: 1762
Author: Buy de Mornas
Sheet Width (in): 20.2
Sheet Height (in): 13.4
Condition: B+
Condition Description: Faint offsetting visible within the image and one 2" tear along the right side that barely touches the neatline, repaired on verso. Otherwise in very good shape, with nice wash color.
$95.00
1 in stock