MISSOURI BOTANICAL GARDEN BULLETIN 111 
vulgare), horseradish (Radicula Armoracia), peppermint 
(Mentha piperita). 
Class 18. Diuretics—Agents which stimulate the secret- 
ing cells of the kidneys. Tobacco (Nicotiana Tabacum), 
savin (Juniperus horizontalis), Indian hemp (Apocynum 
cannabinum), white birch (Betula alba), lily of the valley 
(Convallaria majalis), asparagus (Asparagus officinalis), 
hemp (Cannabis sativa). 
Class 19. Sternutatories—Agents which produce, when 
locally applied to the mucous membrane of the nose, in- 
creased nasal secretion and sneezing. Coffee (Coffea Ara- 
bica), belladonna (Atropa Belladonna), stramonium (Da- 
tura Stramonium). 
Class 20. Anhidrotics—Agents which check perspiration 
and are, therefore, opposite in their action to diaphoretics. 
Belladonna (Atropa Belladonna), stramonium (Datura 
Stramonium). 
Class 21. Parasiticides—Agents which destroy animal and 
vegetable parasites found upon the human body. Tobacco 
(Nicotiana Tabacum), peppermint (Mentha piperita). 
Class 22. Expectorants—Agents which modify the secre- 
tion of the broncho-pulmonary mucous membrane and pro- 
mote its expulsion. Pleurisy-root (Asclepias tuberosa), wild 
yam-root (Dioscorea villosa), liquorice (Glycyrrhiza glabra), 
elecampane (Inula Helenium), white pine (Pinus Strobus), 
mullen (Verbascum Thapsus). 
Class 23. Oxytocics—Cotton (Gossypium herbacewm). 
Class 24. Emmenagogues. Tansy (T'anacetum vulgare), 
common rue (Ruta graveolens), fennel (Foeniculum vul- 
gare), wild marjoram (Origanum vulgare), water pepper 
(Polygonum Hydropiper), rye (Secale cereale). 
Class 25. Sialogogues—Agents which increase the secre- 
tion and flow of saliva and mucus in the mouth. Pellitory 
(Anacyclus Pyrethrum), fever few (Chrysanthemum Par- 
thentum), northern prickly ash (Zanthorylum ameri- 
canum). 
Class 26. Irritants—Agents which, when applied to the 
skin, produce a greater or less degree of vascular excitement 
resulting in local redness or blisters. Red pepper (Capsicum 
annuum), black mustard (Brassica nigra), common rue 
(Ruta graveolens), horseradish (Radicula Armoracia). 
