Unpublished paper and letter, 'Méthodes, ou élémens de calcul pour les problèmes de la physique céleste' ['Methods, or elements of calculation for problems of celestial physics'] from Léonard Jadelot to [Sir Joseph Banks] Paper by Jadelot regarding the movement of the earth and the moon, and the reciprocal forces exerted on each planet. Preceded by a covering letter from Jadelot to Banks. Subject: Astronomy Addressed to the President of the Royal Society [Sir Joseph Banks]. 1792