[SCIENCE & MEDICINE]. EINSTEIN, Albert. Relativity The Special and General Theory. New York: Henry Holt and Company, 1920.

First American edition. 8vo. (xiii), 168, (1) pp. Illustrated with portrait frontispiece. Translated by Robert W. Lawson. Publisher's blue cloth, stamped in gilt, spine faded and spine ends worn, boards lightly soiled; contemporary ownership signature to front free endpaper; dust-jacket wanting.

Well-preserved copy of the first American edition of Albert Einstein's cornerstone work on relativity.