Published by Smithsonian Institution, Washington, 1893
Seller: Cosmo Books, Shropshire., United Kingdom
Booklet - Unbound Pages. Condition: Very Good. Ball explains the slow shifting of the Earth's rotational axis, discussing astronomical evidence and the implications of polar motion. 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.