1. [Einstein, Albert] / Lorentz, H.A. / [Holton, Gerard].

H.A.Lorentz – His Creative Genius and His Personality.

First Edition. Leiden, Rijksmuseum, 1953. Small Octavo. 8 pages including a reproduction of a photograph, showing Einstein and Lorentz by P. Ehrenfest in 1921. Original Softcover. Excellent, close to new condition. Small note in red ink by former owner of this pamphlet, american physicist Gerald Holton: “translation seen by AE [Albert Einstein]”

2. Milne, E.A. [Edward Arthur].

The Fundamental Concepts of Natural Philosophy.

Edinburgh, Oliver & Boyd, 1943. Quarto (17,5 cm x 25,5 cm). 14 pages. Original Offprint. Very good condition with some minor signs of wear. One corner bumped. From the library of Percy Bridgman student, Gerald Holton.