75/2276 Lorentz, H.A. Het relativiteitsbeginsel. Ed. W.H. Keesom. N.pl., n.publ., n.d. (Haarlem, erven Loosjes, 1913), 1st ed., 60p., orig. wr., large 8vo.

- Backstrip partly worn off; fore-edge sl. stained. = DSB IV, p.499.