1888. Neue Denkschr. allgem. schweiz. Ges. Naturwiss. XXX-1; 203 pp. 17 fig. 14 plts. h.t. Orig. wrps. back cover much worn and attachment repaired with paper tape, contents very good, uncut, 4to.
1912. Reprint: Mitteilungen der Geologischen Gesellschaft, Wien V.; pp. 252-271, 2 plts. h.t. with geol. map & sections folding-out. Orig. plain wrps. very good.