Illustrated, 150pp, 8vo, new boards, leather label; ex-lib, pencil marginalia throughout. New Haven: Yale UP, 1923. Mendel discovered vitamins A and B. "Largely through his (Mendel's) own efforts nutrition was transformed during his lifetime from empiricism to a clearly recognized branch of biochemistry founded upon scientific principles." DSB IX, p. 285.
New York: Johnson Repritn Corporation, 1977. Translated by Anders Sparrman, biographical assesment by Bo Valquist and introduction by Torgny T. Segerstedt. xv + 43pp. Facsimile is 364pp. index, 8vo, brown cloth. New York: Johnson Reprint Corporation, 1977. Very Good (+). First reprinting of the 1776 English translation from the Swedish editon of 1771 printed in Uppsala.