Relativity: the Special and the General Theory: a popular exposition.
London: Methuen, 1944. Thirteenth Edition. Hardcover. xiii, (iii), 138pp, with a portrait. No ownership marks. Pages clean and firm, may be unread. In the original binding of pale ochre cloth, spine titled in black: firm, slightly mottled, with some discoloration. In the protected pale blue dust jacket: panels and flaps... More
![Leybourn's Dialling Improv'd. [Leybourn's Dialling Improved]: or, the whole art perform'd, I. Geometrically:.. II. Arithmetically:.. Also, How to describe all necessary Furniture for Sundials... With: Reflective Dialling... To which is now added, Instrumental Dialling: by the Lines of Hours... likewise Mechanick Dialling... Concluding with Tables. Henry Wilson: corrected and, Charles Leadbetter.](/pictures/thumb/17282061.jpg?v=1542314645)