—, fruitfulness of, iii, 381.
—, culture of, in France, xxvii, 176.
—, on the growth of, xii, 170.
—, precaution in planting, xxi, 159.
—, nutrition from, E. Ives on, i, 297.
—, mode of preserving, vi, 200; xvii, 188.
—, how to boil, xxiii, 201.
—, used in steam engine boilers, vii, 193.
—, oil from spirits of wine of, xxviii, 386.
—, essential oil of, A. Cahours, xxxii, 382.