Powdered, it has little effect upon the skin, but in ointment or used by fumigation it has local therapeutic properties.
INCENSE, 'the perfume (fumigation) arising from certain resins and gum-resins, barks, woods, dried flowers, fruits and seeds, when burnt, and also the substances so burnt.
On the other hand, we know that in the first Christian services held in the catacombs under the city of Rome, incense was burnt as a sanitary fumigation at least.
The process of fumigation lasts from seven to nine months, and during it the tobacco acquires its black colour and peculiar flavour.
Among other things Hales invented a "sea-gauge" for sounding, and processes for distilling fresh from sea water, for preserving corn from weevils by fumigation with brimstone, and for salting animals whole by passing brine into their arteries.
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