The plates of this Atlas were engraved upon copper in the highest style of cartographic engraving by the United States Government and furnished to the State. From these plates transfers were made to stone and the maps printed in four colors, viz: The names, roads, railroads and other culture features are in black. Rivers, ponds, swamps and other water features are in blue. Contour lines and figures denoting elevation are in brown. State, county and town boundaries are in pink over the more exact boundaries in black or blue.
Besides showing all bodies of water and watercourses, common roads or highways and railroads, it has one feature distinct from and superior to any map of the State hitherto published, viz: Contour lines, drawn for each 20 feet of elevation above mean sea level. Figures are placed upon the heavier contour lines which denote elevations of 100 feet, 200 feet, etc., above mean sea level, also upon hills and bodies of water to denote their elevation. A contour line indicating 20 feet depth of water below mean sea level is drawn along the coast. In a few cases figures are given to indicate depths of water of less than 20 feet.
This Atlas includes 12 maps and 10 pages index and statistics in all 22 sheets 21×16½. The scale of the survey is 1/62500 or one mile to an inch.
MARY DYER
OF RHODE ISLAND,
The Quaker Martyr that was Hanged on Boston
Common, June 1, 1660.
By HORATIO ROGERS,