From the 17th-century ten-volume Ottoman travelogue of the "Seyahatname" (Book of Travels) by Evliya Çelebi, Stephan translated the rare Palestine section. This was published in six parts from 1935 to 1942 in "The Quarterly of the Department of Antiquities", as "Evliya Tshelebi's Travels in Palestine (1648–50)". Leo Aryeh Mayer, his colleague at the department, also contributed annotations and translations for the first four parts, though Stephan completed the translation of the last two sections alone. Irving suggests that perhaps the 1936 revolt made collaboration with Mayer, a Zionist, increasingly untenable for Stephan.