From 1942 until his death in March 1954, he was research professor of the history of Semitic Civilization at the Dropsie College for Hebrew and Cognate Learning in Philadelphia, Pennsylvania, (except for the war years when he was in government service).
Selections from his collected works were published by KTAV Publishing House NY in 1970. "Studies in Hebrew Astronomy and Mathematics" by Solomon Gandz. Selected with an introduction by Professor Shlomo Sternberg of Harvard. ISBN 978-0870680786
- Gandz, S.: "The invention of the decimal fractions and the application of the exponential calculus by Immanuel Bonfils of Tarascon (c. 1350)", Isis 25 (1936), 16–45.
- Solomon Gandz: "Studies in Hebrew Astronomy and Mathematics" Selected with an introduction by Professor Shlomo Sternberg of Harvard. KTAV Publishing House NY 1970.