Note 1455 — I.—PHÆNOGAMOUS OR FLOWERING PLANTS. (continued 12)

Inquiry into the comparative effects of the Opium officinarum, extracted from the Papaver somniferum or White Poppy of Linnæus, and that procured from the Lactuca sativa or Common cultivated Lettuce of the same author.—Transact. of the American Philosophical Society, iv. (1799) 387.