Mrs. Marcet, Conversations on Chemistry, V. 1-2
“ Therefore, though the sap rises and descends in the plant, it does not appear to undergo a real circulation.The last of the organs of plants is the flower, or blossom, which produces the fruits and seed. These may be considered as the ultimate purpose of nature in the vegetable creation. From fruits and seeds animals derive both a plentiful source of immediate nourishment, and an ample provision for the reproduction of the same means of subsistence. ”
