proof against the entrance of oil from all subsequent coats of color or of varnish.
Coloring the Body. The filler put on over the rough-stuff having been allowed from 24 to 48 hours for drying, the coloring is now in order. The surface must not be disturbed by sandpaper, but a simple dusting off may be necessary. It is customary with some painters to lay on a ground coat of some color corresponding with the color they intend to make the job, but this is more to economize time in making a solid job and to save expensive color, and with the exception of a few extra fine or transparent colors, which are intensified or made more brilliant by application over par-
ticular grounds, the color proper may be laid directly on the prepared surface.
For black, either lamp black or coach black may be used for the first coat, having sufficient oil in the mixture to cause an egg-shell gloss, lay it on with a camel's hair brush and give 12 hours for drying.
To better illustrate the painting of a body, take, for example, a job to be painted a dark green, which is a standard color and one of the most durable colors used in carriage work, and carry it through to the finish. The panels only are to be put in color, the remainder to be black. The first duty is to prepare a ground or preparation coat, and the following will be found a good formula:
To produce a dark green ground, mix lamp black and