- Hinge weak; sl. waterst. backstrip worn off; covers sl. soiled; last blank leaf w. extensive annots. Backcover loose(ning)
= Including Humboldt's most important contribution Denkbeelden over den gedaantenvorm (phijsionomie) der planten in which he expresses his thoughts about the relationship between large-scale vegetation patterns and climate. Cf. Hirsch-H. III, p.313-314; DSB 6, p.554.