M.vásárhelyt [Marosvásárhely]: Nyomtattatott a’ Reform. Kollégyom betüivel Felsö Visti Káli Jó’sef ltal. 1830. First edition. In somewhat later half leather binding. The panels are covered with marbled paper. Spine with gilt title. XVI, [XVII–XX], [1]–162 p., and one folding plate. First edition of Farkas Bolyai's first mathematical publication. This work..... More

Maros Vásárhelyini [Marosvásárhely]: Typis Collegii Reformatorum per Josephum, et Simeonem Kali de felső Vist [József and Simon Káli], 1832, 1833. First edition of János Bolyai’s Appendix, his “explanation of the absolutely true science of space”, “the most extraordinary two dozen pages in the whole history of thought” (Halsted, 1896), a...... More

1950; 1958. Three works by Samuel Herrick. All first editions. Herrick, Samuel: Rocket Navigation. University of California Los Angeles. Astronomical Papers, No. 11. Vol. I, pp. 107–122. [Reprinted from Navigation. (Vol 2. pp. 259–272, December 1950.)] (S.l. S.n. 1950.) (2), 109–122 p. With: Herrick, Samuel –..... More

Budapest: Atheneum Irodalmi és Nyomdai R.-T. (1929). First edition. In publisher’s blue buckram, with gilt ornaments on front panel. Gilt title to spine. 326, [2] p. First edition of the short story “Láncszemek” (Chain-Links; pp. 85–91), the origin of the concept of the six degrees of separation, the theory that..... More

Budapest: Eötvös Loránd Mathematikai és Physikai Társulat, 1925; 1926. First edition. In contemporary half cloth. The two volumes bound into one. (4), 156 p.; (4), 184, (2), [2] p. Contains an early publication of John von Neumann the “Uniformly Dense Number Sequences” in volume 33 (pp. 32–40). With a German..... More

London: Printed for John Salusbury, at the Rising-Sun in Cornhil, M DC XC IV [1694]. First edition in Halley’s translation. In somewhat later leather. Spine with red title vignette. With several charts and woodcut diagrams. (4), 208 p. First English edition in Edmond Halley’s translation of Oughtred’s classic work, Clavis..... More

Sent from Toronto. Dated on December 30, [1957]. Handwritten postcard by Erdős. Signed by Erdős and six fellow mathematicians. 140 × 85 mm. Two lines of handwritten greetings in Erdős’s hand, sent to his doctoral advisor Lipót Fejér (1880–1959). Beside Erdős the postcard is signed by fellow mathematicians..... More

Warszawa: Nakladem Towarzystwa Naukowego Warszawskiego z Zasilku Ministerstwa wyznan Religijnych i Oswiecenia Publicznego, 1933. First edition. In publisher’s printed wrappers. VII, (1), (1)–116, (2) p. Scarce first edition of Tarski’s monograph on the concept of truth in formalized languages. “In his classic monograph on the concept of truth..... More

Budapest: Kiadja a Magyar Tudományos Akadémia, 1933. First edition. Text in Hungarian with abstracts in German. In publisher’s printed wrappers. VI, (1), (1)–602, (2) p. and 5 photographic plates. Scientific yearbook with Wigner’s first paper on neutron and contributions by Gábor Szegő and Alfréd Haar. With the first edition..... More