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  2026-07-09 11:00:00 2026-07-09 11:00:00 America/New_York Potter & Potter Auctions Potter & Potter Auctions : Summer Fine Books & Manuscripts https://auction.potterauctions.com/auctions/potter-potter/summer-fine-books-manuscripts-22825
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Lot 0

[LOGIC]. LE CLERC, Jean (1657-1736). Logica: sive, Ars Ratiocinandi. [and] Ontologia; sive de Ente in Genere. [and:] Pneumatologia seu de Spiritibus.

Estimate: $600 - $900
Starting Bid
$300

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[LOGIC]. LE CLERC, Jean (1657-1736). Logica: sive, Ars Ratiocinandi. [and] Ontologia; sive de Ente in Genere. [and:] Pneumatologia seu de Spiritibus. London: Awnsham & Johan. Churchill, 1692. 12mos. Two parts in one volume; first and second parts with separate titles; title of "Pneumatologia" section taken from caption. Each part with a separate index. [12], 182, [2], [8], 199 [i.e. 190] pp. Rebound in modern antique-style mottled calf, ruled in blind, gilt morocco spine label. New endpapers. FIRST EDITION. 

Condition

Half-title clipped at bottom, removing about a third of the leaf, but without loss of text; reinforced with modern paper. Top corner of title-page cut away to remove a name, with no loss of text or borders. Ink signature, dated 1739, on half-title. Minor soiling to text. Generally a very good, clean copy. 

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Le Clerc, a Swiss Protestant by birth, was one of the outstanding figures in Anglo-Dutch intellectual history. The present work was written as a textbook for his own students and was used at Cambridge as a standard text for many years, going through five editions by 1716. The author's argument throughout generally follows that of Locke. This first edition is scarce; N.U.C. lists only one copy. Wing L821. Not in Fulton, Boyle.