Tip. Commercio, Milano, 1876. In-8 p. (mm. 202x138), brossur orig., pp. 16. L'occhio sano - Presbiopia - Miopia - Fotofobia - Diversit degli occhi - Occhi operati da cateratta - Listino prezzi. Buon esemplare.
1911 306 p., 35 pls (many lithographed), roy. 4to, original publisher’s printed boards. Unopened copy. Published in: Nova Acta. Abhandlungen der Ksl. Leop.-Carol.-Deutschen Akademie der Naturforscher.This volume includes also a smaller paper: Lerp, Untersuchung der Fehlerquellen in den älteren Bestimmungen der spezifischen Ladung des Elektron (52 p., 2 pls).