Rare reduction of Greenough’s geological map of England and Wales
By [GREENOUGH, George Bellas], July 21st, 1826.
The first geological map of Essex
By SMITH, William, [1820, but issued after 1844].
The first graphic chart to detail heights of Mountains and Lengths of Rivers
By SMITH, C[harles], Oct. 1st, 1817, [and] Aug. 1st, 1816.