Tattooing

(tat-too' -ing) d vermilion. It is a comnx practice among sailors, the color being introdui into the true skin by pricking it witli needles. Ta tooing as a Therapeutic Measure, to 1 natural color in parts which are pigmented, is ally resorted to. For white, use baryta white, and for other colors, the earth-colors (ochers; yellow, brown, red). To a ist these cinnabar and ultramarine may be used. Mix the colors on a gla plate and impregnate the needles. Electrolysis followed by tattooing is useful in cases of vascular nevi. T. of Cornea, an operation to diminish the unpleasant appearance of leukoma of the cornea by tattooing the same so as to simulate the appearance of the normal pupil and iris.