Walford, T. (1818). The scientific tourist through England, Wales & Scotland: By which the traveller is directed to the principal objects of antiquity, art, science & the picturesque including the minerals, fossils, rare plants, and other subjects of natural history, arranged by counties ; to which is added an introduction to the study of antiquities, and the elements of statistics, geology, mineralogy and botany. printed for J. Booth.

Walford, Thomas. The Scientific Tourist Through England, Wales & Scotland: By Which the Traveller Is Directed to the Principal Objects of Antiquity, Art, Science & the Picturesque Including the Minerals, Fossils, Rare Plants, and Other Subjects of Natural History, Arranged by Counties ; to Which Is Added an Introduction to the Study of Antiquities, and the Elements of Statistics, Geology, Mineralogy and Botany. printed for J. Booth, 1818.