[2]. Sialagogues, as mercury internally, and pyrethrum externally.
[3]. Expectorants, as squill, onions, gum ammoniac, seneka root, mucilage: some of these increase the pulmonary perspiration, and perhaps the pulmonary mucus.
[4]. Diuretics, as neutral salts, fixed alcali, balsams, resins, asparagus, cantharides.
[5]. Cathartics of the mild kind, as sena, jalap, neutral salts, manna. They increase the secretions of bile, pancreatic juice, and intestinal mucus.
[6]. The mucus of the bladder is increased by cantharides, and perhaps by oil of turpentine.
[7]. The mucus of the rectum by aloe internally, by clysters and suppositories externally.
[8]. The mucus of the cellular membrane is increased by blisters and sinapisms.
[9]. The mucus of the nostrils is increased by errhines of the milder kind, as marum, common snuff.
[10]. The secretion of tears is increased by volatile salts, the vapour of onions, by grief, and joy.
[11]. All those medicines increase the heat of the body, and remove those pains, which originate from a defect of motion in the vessels, which perform secretion; as pepper produces a glow on the skin, and balsam of Peru is said to relieve the flatulent cholic. But these medicines differ from the preceding class, as they neither induce costiveness nor deep coloured urine in their usual dose, nor intoxication in any dose.