EULER, Leonhard (1707-1783). Institutiones calculi differentialis cum eius usu in analysi finitorum ac doctrina serierum, St. Petersburg: Academia Imperialis Scientiarum, 1755. 4° (237 x 195mm). (Lightly browned and spotted.) Old blue paper-covered boards (joints split, rubbed and scuffed). Provenance: illegible early inscriptions on front pastedown and on verso of title, the latter dated 1786. FIRST EDITION, the second volume of Euler's trilogy on mathematical analysis. Norman 733.