in zoology. See DRACO.

Dragon's Blood, a red coloured, inodorous, and insipid resin, insoluble in water, but soluble in spirit of wine and in oils, to both which liquors it communicates a red colour. By fire it is fusible, inflammable, and emits an acid vapour like gum Benzoin. A solution of dragon's blood in spirit of wine is used for staining marble, to which it gives a red tinge, which penetrates more or less deeply according to the heat of the marble during the time of application. But, as it spreads at the same time that it sinks deep, for fine designs the marble should be cold. Mr du Fay says, that, by adding pitch to this solution, the colour may be rendered deeper.

Dragon-Fish, or Dragonet, in ichthyology. See CALLIONYMUS.

Dragon-Fly. See LIBELLULA.

Dragons, in botany. See DRACONTIUM.