I finally found a simple pattern to use in making fabric but can't figure out the instructions. The pattern is in Mary Black's "Key to Weaving" book on p. 353. Fig. 410. I picked up a mistake on the left side of the threading (fig. 407) which I can fix but am wondering if anyone has used this pattern and can walk me through the maze of verbiage on the page. The numbers in the instructions don't match the printed sample. Are there other mistakes in the instructions I'm not seeing? I'm sure I'm reading more into this than necessary.