Published by Smithsonian Institution, Washington, 1871
Seller: Cosmo Books, Shropshire., United Kingdom
Booklet - Unbound Pages. Condition: Very Good. Stockwell discusses secular variations in planetary orbits, reviewing gravitational interactions, perturbations, and the mathematical treatment of slow orbital changes over astronomical timescales. 13 Pages. An authentic standalone article, extracted from a larger volume. Not a reprint or reproduction, but an original work in its own right. Preserved in a modern card cover, prepared for practicality - an unassuming but serviceable presentation that favours function over finery. Size: 16 x 24 cms. Category: Smithsonian Institution; Cosmo Books : 29 years on ABE, 47 years taking care of customers. A bookseller you can rely on.