— physiology, xix, 393.
— —, experiments in, Niven, xxxiii, 290.
— —, in relation to rotation of crops, Macaire, xxiii, 138.
— productions of the earth at different periods in its early history, Ad. Brongniart, xxxiv, 315.
— tissue, elementary composition of, Payen, xlii, 212.
— tissue, development of, xxxix, 205.
— crystallizations, xix, 177.
— monstrosities, xxxv, 310.
[Vegetation] of the first period of an ancient world, H. Witham, xviii, 110.f
— of the Andes of Columbia, distribution of, xxxvii, 15.