THE AMERICAN ARBOR-VITA. 161 
though eminently a swamp tree, it grows well on most 
any free, cool, fertile soil, except stiff clays. When 
planted for timber it should be planted close together. 
It thrives from layers or cuttings. It produces a va- 
riety of trees by cultivation from seed, some of which are 
very beautiful, among which are some with silver-tipped 
leaves, others of a golden hue, and some dwarfed varie- 
ties, so that there is a wide field for experiment among 
cultivators. The following are some of the most im- 
portant varieties: Siberian arbor-vitz, a tree of very 
slow growth ; gigantic arbor-vitz, an immense tree found 
in Oregon; Nee’s arbor-vitx, a very hardy variety found 
on the Pacific coast ; Chinese arbor-vite, of value only 
as an ornamental tree, and Japanese arbor-vite, a very 
ornamental tree, much more so than the American va- 
riety, as it has beautiful, light, graceful branches and 
foliage. Regarding the medicinal properties of this tree 
—Thuja occidentalis—a fluid extract of its leaves, pre- 
pared by Parke Davis & Co., has given excellent results 
in the treatment of malarial diseases, and the saturated 
tincture may be given for pulmonary hemorrhage, and 
also applied to cancerous ulcerations, warts, etc. A salve 
made with the leaves used to be a remedy employed by 
the Indians for the relief of rheumatism, and a poultice 
of the leaves made with milk has been highly spoken of 
for the same purpose. By distillation the leaves yield 
a yellowish-green volatile oil, which has been used as a 
vermicide, and the distilled water has been praised as a 
remedy for dropsy. 
Thus far ZAiuja appears to have been employed em- 
pirically only, but it would seem, on reviewing the affec- 
tions in which it has been of service, that its action may 
become very useful to the practitioner in the treatment 
of malignant diseases, especially in diminishing tenden- 
cies to bleeding, relieving the violence of pain, and caus- 
ing ene of unstripped muscular fibres. 
