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Estimate: $ 400 - $ 600
PORTERFIELD, WILLIAM. A Treatise on the Eye, the Manner and Phenomena of Vision. 8 folding engraved plates. [2], xxxi, [1], 450, [2]; xxxv, [1], 435 pages, including errata leaf at end of each volume. 2 volumes. 8vo, 202x128 mm, modern 1/4 linen; contents generally clean, few plates reinforced along fore edge on verso; bookplates. Edinburgh: A. Miller et al., 1759
