This is an adaptation of an old English pattern that my mother used to knit, about 60 years ago. I have simplified the pattern to make it easier to understand. Less than a half ounce of wool will make one pair, or one ounce will make 3 pairs. Any sock-weight yarn will do for this pattern. Heavier yarn and larger needles can be used to make a larger bootie for a toddler. The ribbing uses a special stitch that incorporates making yarn-overs, then knitting the yarn-over with a stitch on the next row to give the ribbing more dimension.