OR,

THE CRUST OF THE EARTH,

WHAT IT IS,

AND WHAT ARE ITS USES.

BY

THE REV. W. G. BARRETT,

ROYSTON.

"There is in this universe a stair, or manifest scale of creatures,
rising not disorderly nor in confusion, but with a comely method
and proportion."-SIR THOMAS BROWNE, Religio Medici, 1642.

LONDON:

ARTHUR HALL, VIRTUE, & CO.

25, PATERNOSTER ROW.