Foundations of potential theory.
Berlin: Julius Springer, 1929. 8vo. xi, [i], 384 pp., plus leaf of publisher’s advertisements. FIRST EDITION. With 30 text figures. Original publisher’s yellow cloth, a bit rubbed; ownership signature dated London, 1930 on fly-leaf. A very good copy. First edition. Kellogg was a professor of mathematics known for his work..... More