In repainting a staircase wall, representing about 120 sq. yd., to a shade of green, if the colour, etc., is procured from a colour merchant (not an oil shop) the quantities and the cost will be as follows: - 211b. of white lead, cost 5s.; 21b. of patent dryers, cost 8d.; lib. of deep lemon chrome, cost 1s.; 31b. of deep brunswick, cost 2s.; 2oz. of drop black, cost 3d., all ground in oil; 3qt. of linseed oil, cost 1s. 6d.; and 3 qt. of turpentine, cost 2s. The white lead, dryers, chrome, black, half the green, and 1 qt. of oil should be mixed well together, after which small quantities of the reserved green should be added until the desired shade is obtained. The paint should be mixed lighter than the sample, as it will dry darker. Divide the mixed colour into two equal parts. Thin one part with the oil so that it works freelj-, and spread on the wall evenly; twenty-four hours afterwards apply the remaining portion of the colour, thinning with turpentine so that it works freely and covers well. The time is an important item: if the interval is more or less than twenty-four hours the second coat will be sheary - that is, bright in some places and dull in others. If the last coat is stippled the result will be a better job.

To stipple is to dab the surface all over with a flat brush: this takes out the brush marks. Commence at the top and work downwards. There may be a little colour left over.