Here, you can see for yourself.

You see how the figures are made,--ordinary cross stitch.

Well, as you know, an eight is worked almost exactly the same as a six, except that it has two more stitches on the upper right-hand side.

If those two stitches are picked out of an eight, it turns into a six! Now, I'm sure your young eyes can see that two stitches _have_ been picked out in this instance.

See the slight mark where the canvas is the least bit drawn?
And see, on the back a fresh stitch was necessary to keep the ends from ravelling.