Books by L. A. Orbeli:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Orbeli, L. A. (Leon Abgarovich), 1882-1958: Trudy fiziologicheskikh laboratorii im I.P. Pavlova. (Izd-vo Akademii nauk SSSR, 1925), also by Ivan Petrovich Pavlov (page images at HathiTrust; US access only)
Find more by L. A. Orbeli at your library, or elsewhere.