This section is from the book "The London Medical Dictionary", by Bartholomew Parr. Also available from Amazon: London Medical Dictionary.
A Candle, (from candeo, to shine). Exhalations from candles are salutary or hurtful, according to the materials of which they are formed. Old tallow often sends off bad fumes; wax, though white, creates the head ach, and often hurts weak lungs; hogs' fat is very offensive; beef tallow alone is not good; that of sheep affords the best.
Candela fuma'i.is, or candela pro suffitu odorata; called so from fumus, smoke, from their odoriferous effluvia; called also taeda, avis, and avicula Cypria. These are made of odoriferous powders, mixed with one third or more of the charcoal of willows or lime tree, and reduced to a consistence with turpentine, lab-danum, etc. Resinous substances alone may be mixed with balsamics; they give out a grateful odour, purify the air, and raise the spirits. They were formerly burnt in times of pestilence: they are also, from their form, called bacilli, and masses ad fornaceni, because they are usually applied to a hot grate or chimney to diffuse their smell without lighting them. See Chointts Dict. Oeconomique: for Candela, medicaid, sec Bougie.
Candela regia, and candelaria. See Verbas-cum.
 
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