A new system, or, An analysis of ancient mythology : wherein an attempt is made to divest tradition of fable and to reduce the truth to its original purity : in this work is given an history of the Babylonians, Chaldeans, Egyptians, Canaanites, Helladians, Ionians, Leleges, Dorians, Pelasgi : also of the Scythae, Indo-Scythae, Ethiopians, Phenicians ... / by Jacob Bryant ...

Volume 3 published in 1776 to accompany both first ed. of 1774 (v. 1-2) and to complete this ed. (see Bentley); the maps are in v. 3.
Plates, figures, and tail-pieces engraved by James Basire.
"There is a good possibility that Blake worked on the plates" (Essick).
"It is highly likely that Blake had some hand in at least a few of Basire's engravings" (Bentley).
Pagination: v. 1: xvii, [3], 516 p., [8] leaves of plates; v. 2: vi, 535, [1] p., [23] leaves of plates; v. 3: viii, 601, [1] p., 3 leaves of plates (2 folded).
Signatures: v. 1: [a]² b-c⁴ B-3T⁴ 3U²; v. 2: pi² a² B-3Y⁴; v. 3: [a]⁴ B-4G⁴ chi²[-chi2].
Extra-illustrated with engraving of an antiquity in the Duke of Marlborough's collection (v. 2, after p. 392).