Jaeger, Gustave; M.D. PROBLEMS OF NATURE, Researches and Discoveries. Selected from his Published Writings. Edited and translated by Henry G. Schlichter, D.Sc. First Edition; pp. [ii], viii, 262, (adv.); folding map, 3-page facsimile letter from Charles Darwin, glossary, index; original cloth (a little marked; title-page browned); a very good copy; scarce. London; Williams and Norgate; 1897.