Nor is the sustenance and nutrition of the animal kingdom the only function these minute productions may perform; they may also be the purifiers of the vitiated atmosphere, and thus execute in the Antarctic latitudes the office of our trees and grass turf in the temperate regions, and the broad leaves of the palm, &c., in the tropics."

"It is such purifiers as this, that gives our island its character, and makes it perhaps the very healthest as it is universally admitted to be the beautifullest spot in creation.

As soon as the acid comes into contact with the carbonate, there occurs a disengagement of carbonic acid gas, which flows directly through the pipe, F, into the purifier at the upper part of the column.

Sassafras is a good tea, a good blood purifier in the spring of the year.

When Mrs. Barker, over the hill, had first recommended that new blood-purifier to Miss Milligan, Miss Milligan had laughed.