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The large Illustrations in this volume are produced by a new method, without the aid of an engraver; and some little indulgence is asked for them, on the plea of the inexperience of the Artists in this process.
The drawing is made with an etching-needle or any suitable point, upon a glass plate spread with collodion. It is then photographed upon a prepared surface of wax, and from this surface an electrotype is formed in relief, which is printed with the type. By these means the Artists' own work is preserved; and though it may be impossible for this process to rival the delicacy of a good engraving upon wood, yet it can lay claim to an accurate fidelity which can only be equalled by etchings upon copper.
