Experimental Researches on Electricity, Fourteenth Series. Nature of the electrical force or forces [comprising sections 1667-1748], pp. 265-282 in: Philosophical Transactions for the Year 1838, Part II

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First edition, complete journal issue in contemporary wrappers, of this important paper in which Faraday summarizes the theoretical conclusions he had deduced from the experiments described in the 11th-13th Series. ". . . each species of matter had its own mode which gave it specific properties when subjected to the electrical forces. This view of molecular action was even more explicitly stated in the Fourteenth Series. There Faraday summed up the results of his electrical researches, and stated the theoretical conclusions to which these researches had led him:- The theory assumes that all particles, whether of insulating or conducting matter, are as wholes conductors; That not being polar in their normal state, they can become so by the influence of neighbouring charged particles, the polar state being developed at the instant, exactly as in an insulated conducting mass consisting of many paricles; That the particles when polarized are in a forced state, and tend to return to their normal or natural condition; That being as wholes conductors, they can readily be charged, either bodily or polarly; That particles which being contiguous are also in the line of inductive action can communicate or transfer their polar forces one to another more or less readily . . . Electrical force, therefore, could be transmitted in two ways: either by the intermolecular strain of a chain of particles, or by the intramolecular distortion of a single particle. In both cases, the action was not at a distance, but from particle to particle" (Pearce Williams, Michael Faraday, p. 308). 4to, pp. [vi], 171-414, 59, [4], with 5 plates (umbered IV-VIII). Contemporary (probably original) plain blue wrappers with printed paper spine label, unopened (some browning and soiling to the first few leaves, damp-stain to plates). Old stamp on titles 'Archigymnasii Insulensis Cathol' (Catholic University of Lille), overstamped 'Annule'. N° de ref. del artículo ABE-1572881733918

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