130 A COMPENDIUM OF 
characteristics, with dicecious or moncecious 
flowers in catkins with neither calyx nor corolla. 
This distinguishes all the pine family coniferz 
except the yew, which is a sub-family. Odor 
aromatic and balsamic and somewhat camphor- 
like; taste bitter and terebinthinous. Arbor 
Vite is diuretic, stimulant and. emmenagogue 
in its effects, and given in form of infusion and 
extract. Dose of the former % tor fluid ounce, 
of the extract 15 to60 drops. The leaves and 
tops contain resin. tannin, gum, pinipicrin thujin 
and about 1 per cent. of volatile oil. Pinipicrin 
is a yellow, bitter, amorphous substance, whilst 
thujin is a crystalline substance. Dose about 
the same as the savin and cedar. ‘The three 
aforementioned shrubs or trees constitute a con- 
necting link between a class of plants whose 
remedial virtues lie in the leaf and tops and that 
class of plants whose remedial agency exists in 
the flower and fruit which constitutes technically 
cacumina, flores fructi and petale. Origin of 
the name somewhat obscure, supposed to be 
from the Greek name of Aristotle of Theophras- 
tus Lesbius, a pupil of Aristotle, but according 
to authority the shrub described by him was the 
thuja articulata. 
Guaiaci Lignum, Guaiacum Wood, Guaiacum 
Officinale.—Natural order Zygophyllacez. This 
large evergreen forest tree is said to be a native 
of South America, but we find it growing in 
Hayti and other West India islands, The tree 
attains a height of 30 to 60 feet (10 to 20 meters), 
with opposite and abruptly pinnate leaves made 
up of several pairs of oval or obovate leaflets. 
The flowers are light-blue in color, with five 
