Almost every fabric that is good of its kind is suitable for a ground for needlework, and any thread of silk, linen, cotton, or wool, is suitable for laying on a web, with the purpose of decorating it. Yet these materials should not be wedded indiscriminately, every surface requiring its peculiar treatment; a loose woollen fabric, for example, being best covered with wool-work rather than with silk. Not that it is necessary to work in linen thread on linen ground, in silk on silk ground, and so forth; silk upon linen, silk on canvas, wool on linen, are legitimate, because suitable combinations; it being scarcely necessary to note that linen or wool threads should not be used on silk surface, as to place the poorer on the richer material would be an error in taste. Gold thread and precious stones will of course be reserved for the richer grounds, and the more elaborate kinds of work.
A plain or a figured (damask) silk can be employed as a ground for needlework, the broken surface of a good damask sometimes enriching and helping out the design. If work is to be laid directly on silk ground, it should be rather open and light in character; if closer stitches are wanted, the principal forms are usually done on a canvas or linen backing, which is then cut out and "applied" to the final silk ground, the design being carried on and completed by lighter work of lines and curves, and by the enrichment of gold thread, and sometimes even precious stones. These two methods are a serious and dignified form of embroidery, and were often used by the great mediæval embroiderers on a rich figured or damask silk, and sometimes on plain silk, and sometimes on a silky velvet. It is not easy to procure absolutely pure "undressed" silk now, and pliable silk velvet of a suitable nature is still more difficult to obtain. Satin is, to my thinking, almost too shiny a surface for a ground, but it may, occasionally, be useful for small work. A sort of imitation called "Roman satin" is sometimes employed on account of its cheapness and effectiveness, I suppose, as it cannot be for its beauty; the texture, when much handled, being woolly and unpleasant. No one taking trouble to procure choice materials will think of making use of it.