Beschreibung:

Photosynthesis.- Sénébier (Jean) Recherches sur l'Influence de la Lumiere Solaire Pour metamorphoser l'air fixe en air pur par la vegetation, first edition, contemporary mottled sheep, spine gilt with red morocco label, a few scuffs but generally excellent, Geneva, Chez Barthelemi Chirol, 1783. ⁂ "Sénébier published several works dealing with photosynthesis. He showed that leaves in water, in the absence of light, do not allow the air they contain to escape, that the quantity of air produced is proportional to the light intensity (except during the first few hours), and that all the green parts of plants, not only the leaves, furnish air. Sénébier proved by experiments with the nitric oxide eudiometer that the bubbles emitted under the influence of light consist of oxygen (dephlogisticated air) and he proved that the leaves perform their function also when they are isolated from the plant. Sénébier's experiments were repeated and confirmed by Ingen Housz." (Partington III pp. 280/283).