Note 91 — Chapter XV

The author owes much information on British mines to two publications on the Mining District of the North of England, by J. Sopwith, Esq., Civil Engineer, and Mr. Leithart, Mine Agent. On the Cornish mines she has derived much information from the writings of John Taylor, Esq., and Sir Charles Lemon, Bart.; from a store of valuable materials contained in the “Progress of the Nation,” by G. R. Porter, Esq.; from the Statistical Journal; and on the general distribution of minerals over the globe, from the “Penny Cyclopædia,” and various other sources.