Greenough’s riposte to Smith in the battle of the geological maps
By GREENOUGH, George Bellas, 1839, and 1840.
Greenough recognises his debt to William Smith
By GREENOUGH, George Bellas, July 1865.
Rare reduction of Greenough’s geological map of England and Wales
By [GREENOUGH, George Bellas], July 21st, 1826.