Jesus - Heitmüller, Wilhelm 1869-1926 (J.C.B. Mohr (P. Siebeck), 1913)
Part 1 previously published in "Die religion in geschichte und gegenwart" v.3; part 2 originally given as a lecture at the Schweizerische christliche studentenkonferenz, Aarau, 1913. cf. Prefatory note