Wave stitch filling (pulled thread)
This pulled work stitch uses diagonal stitches in a V format to give a wave effect.
N.B. Some modern authors call this Wave stitch, but we have retained the original name of Wave stitch filling to avoid confusion with Wave stitch.
Work from left to right to start with. Bring the needle up two threads inside your outline. Count left two and up four and take the needle down.
Count right four, bring the needle up and pull. Repeat to complete the first row.
Make a holding stitch on the outline or in the border where this holding stitch will be covered later on. Then, count left two and down four from the last bottom hole of the previous row and bring the needle up.
Take the needle down through the last bottom hole of the previous row.
Structure of stitch
Wave stitch is a pulled whitework stitch that is very useful for filling small areas.
Mrs Archibald Christie, Samplers and Stitches (1921) , p.102