See his Miscellanies, vol. ii. p. 131-259, first published in 1756; reviewed in Monthly Review, vol. xviii. pp. 560-568. See also Knowles's Life of Fuseli, p. 59, and Campbell's Hist. of Scottish Poetry, 4to, p. 222. Armstrong was very intimate with Fuseli, and travelled with him on the continent; experiencing the usual fate of travellers, they quarrelled at Genoa, about the pronunciation of a word, and parted; but Fuseli visiting Armstrong on his death-bed, they were reconciled. Smith, in his Life of Nollekens, says, Armstrong often noticed Fuseli in the papers of the day with praise (see vol. ii. p. 420, Life of Nollekens): and in his Sketches, (vol. ii. p. 236, Armstrong's works,) there is a passage prophetic of Fuseli's future fame: "This barren age has produced a genius, not indeed of British growth, unpatronised and at present almost unknown, who may live to astonish, to terrify, and delight all Europe." There is a violent passage against Armstrong in Churchill's Poems (The Journey), vol. iii. p. 229, ed. 1774, 12mo. See Dr. Beattie's account of this work of Armstrong in Forbes's Life of Beattie, vol. i. p. 203.