Windows (To Paint To Resemble Stained Glass). 1. Draw the design upon paper the size required, then colour it, and affix by means of a little gum to the outside of the window, and paint the inside over the design with varnish colours. 2. By this method the same design may be multiplied as often as desired, and as the most brilliant hues are obtained, the whole being transparent, and possessing the same warmth of colouring as stained glass, it is to be preferred to the other methods. Procure a piece of cardboard, and give it three coats of fat copal varnish, allowing one to dry before the next is applied. When dry, draw the necessary figures on it, and cut out such parts as are intended to be painted red, and number the card 1; then do the same on another Intended to be blue, number this 2; and continue to construct a pattern for each colour, until you have the number required. The object of affixing a number to each pattern, is to secure an orderly application of them in succession from No 1, up to the highest number in the set. There are certain parts in each pattern marked with a dot, which is placed in the same part in each, so as to admit of the adjusture of the successive numbers; these may be termed the adjusting points, as pointing out the exact situation in which each pattern should be placed after No. 1 has been used, because it will accurately admit a part that has been painted by a preceding pattern to appear through, as each succeeding pattern is applied. A brush should be reserved for each colour, marked on the side with the name of the colour, and never used for any other colour, without first washing it well with oil of turpentine - especially green. Colours should not be laid on too thick, but if requisite, tempered with a little oil of turpentine until of the proper consistence, and when applied by means of the patterns, brushed through them lightly, and the patterns cleaned afterwards with a little cotton. As the lights and shades of the pictures are displayed, lay the lighter colours first on the lighter parts of the design, and the darker over the shaded parts; and having laid on the brighter colours, it is not of any consequence if the darker shades are laid a little over them. When finished, the glass should be placed in a warm dry place, free from dust, for three or four days, but if the glass is in the windows, they should be closed, and kept free from dust. Lake is better applied when previously ground with water impregnated with gum and salt, the shading being effected by applying successive coats of the pigment. Blue purple is formed by combining lake and indigo, as directed above. Green is made by adding sufficient gamboge to the above to give it the desired hue. Yellow is prepared by grinding gamboge with salt water alone. White. - Heighten the lights with the quill of a turkey (the nib unsplit), in the same manner as with crayons on blue paper.