Scotland.- Western Isles.- Geology.- Macculloch (John) A Description of the Western Islands of Scotland, Including The Isle of Man; Comprising an Account of their Geological Structure; With Remarks on Their Agriculture, Scenery, and Antiquities, 3 vol., including Atlas, first edition, half-titles, 33 engraved plates, of which 1 hand-coloured and 1 folding, 10 engraved maps, all but 1 hand-coloured, 2 of which folding or double-page, advertisement f. at end of text vol.2, a few pencil markings or notes, occasional spotting, original boards, original printed labels to spines of text vol., Atlas vol. with remains of printed label and head of spine worn, some staining, corners worn, [Challinor 93; Ward & Carozzi 1443], 8vo & 4to, Printed for Archibald Constable and Co. [& others], 1819.

⁂ A good set in original boards, with the rare Atlas volume. 'Macculoch's most important book. The numerous islands described, large and small [and including Man], many of which had not previously been examined by geologists, contain rocks ranging in age from Precambrian to Tertiarty, including many igneous rocks. His descriptions of the igneous rocks and the sketches and maps in the accompanying atlas promoted a true understanding of the nature and origin of igneous rock at a time when the mistaken views of Werner on their origin had not been eradicated' (DSB).