For large knots use two or more threads of silk, and do not twist them more than once. With a single thread you may twist twice, but the result of twisting three or four times is never happy.
the working of G on knot-stitch sampler.
The use of knots is shown to perfection in Illustration [24]. Worked there in white silk floss upon a dark purple ground, they are quite pearly in appearance, whether in rows between the border lines, or scattered over the ground. They are most useful in holding the design together, giving it mass, and go admirably with chain-stitching, to which, when close together, they have at first sight some likeness. A single line of knots may almost be mistaken for chain-stitch; but of themselves they do not make a good outline, lacking firmness. A happier use of them is to fringe an outline, as for example in the peacock's tail on page [38]; but this kind of thing must be used with reticence, or it results in a rather rococo effect. Good use is sometimes made of knots to pearl the inner edge of a pattern worked in outline, or to pattern the ornament (instead of the ground) all over. Differencing of this kind may be an afterthought—and a happy one—affording as it does a ready means of qualifying the colour or texture of ground, or pattern, or part of either, which may not have worked out quite to the embroiderer's liking.
The obvious fitness of knots to represent the stamens of flowers is exemplified in Illustration [93]. Worked close together, they represent admirably the eyes of composite flowers, as on the sampler; they give, again, valuable variety of texture to the crest of the stork in Illustration [85].
The effect of knotting in the mass is shown in Illustration [31], embroidered entirely in knots, contradicting, it might seem, what was said above about its unfitness for outline work. The lines, even the voided ones, are here as sharp as could be; but then, it is not many of us who work, knot by knot, with the marvellous precision of a Chinaman. His knotted texture is not, however, always what it seems. He has a way of producing a knotted line by first knotting his thread (it may be done with a netting needle), and then stitching it down on to the surface of the material, which gives a pearled or beaded line not readily distinguishable from knot stitch.