What is FIR?

See Abies. F.-balsam. See Abies balsamea. F.-wool, a fiber prepared in Germany from pine-leaves. It has been recommended as a material for the clothing of invalids. F.-wool Extract, an extract prepared from the leaves of Pinus sylvestris in the process of separating fir-wool. It is used in chronic rheumatism. F.-wool Oil P., the fragrant volatile oil distilled from the leaves of Pinus sylvestris, used mainly by inhalation. Dose, for rheumatism, 10-20 drops, four times a day.

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Definition of  FIR