Einstein's The Theory of Relativity: three lectures for chemists by Erwin Freundlich. Published by Methuen & Co, 1923. First edition, first print. With a preface by Albert Einstein Freundlich would have explained Einstein's groundbreaking ideas, though his own experimental tests of the theory at the time had yielded inconclusive or incorrect results, which later caused him to question some of Einstein's predictions. Erwin Freundlich (1885–1964) was a German astronomer and a close collaborator and friend of Albert Einstein. He was one of the first astronomers to actively promote and seek experimental verification of Einstein's theories. Condition Hardcover in original cloth binding in very good for ages. Page fade colour and foxing in some area. Firm binding. Three Lectures for Chemists. Newtonian Mechanics, The Special Theory of Relativity, The General Theory of Relativity. xii + 98 pages. Dimension: 19.5 x 13.5 cm. Photos supplement descriptions & Objects that show in the listing photo. "Please View & Used the photos for Part of Description & Further Condition Details"!!! Ship tracked & Insured.