Books by Falconer, John Downie.
La formacion de Gondwana en el
La formacion de Gondwana en el nordeste del Uruguay
The Gondwana system of north e
The Gondwana system of north eastern Uruguay
The southern plateau tinfields
The southern plateau tinfields and the Sura volcanic line
On horseback through Nigeria
On horseback through Nigeria; or, Life and travel in the central Sudan