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Logic Demonstrator, by Earl Stanhope, Chevening, c. 1810

preview image for Logic Demonstrator, by Earl Stanhope, Chevening, c. 1810
Inventory Number: 45952
Object Type:
Persons: Earl Stanhope (Maker)
Date Created: c. 1810
Place Created: Chevening Kent United Kingdom (England) Europe
Subject Classification(s): Calculating Instruments Mathematical Instruments  Calculating Instruments Mathematical Instruments   
Accession Number: 1950-16
Brief Description: Mahogany, brass, tinted glass, and paper.
The instrument serves a dual purpose, assisting in the solution of problems of the calculus of classes (into which propositions of Aristotelian logic may first be cast), and of a crude but early logic of probability. There are two slides, the 'gray' and the 'red'. The gray slide is placed in a slot at the left, except when used for probabilities, when it is placed in a slot at the top.

Stanhope printed on his own press several chapters of an unfinished work entitled 'The Science of Reasoning Clearly Explained upon New Principles', which circulated among only a few acquaintances. He occupied himself with the study of logic for about thirty years, from 1787 to his death in 1816. Reference: Robert Harley, Mind, vol. 4 (April, 1879).
Primary Inscriptions: "PRINTED BY EARL STANHOPE, CHEVENING, KENT" In wooden box marked "TOP"
Provenance: Transferred from the Ashmolean Museum in 1950.
Collection Group:

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