=Combing and spinning flax.= Uncle John divided his story in two parts, and told the Pleasant Valley Girls' League about the manufacture of flax as well as about its growth. The scutched flax is delivered to the manufacturer. He must first spin the flax into yarn before it can be woven into cloth. The flax fibers measure from 20 to 35 inches in length. How are they to be made into one continuous piece for spinning? The pictures (Figs. 112 and 113) will give a very good idea. Long ago grandmother or great-grandmother spun the yarn for the linen sheets on the flax wheel. Marjorie's grandmother sent her old flax wheel to school for the girls to see. The flax is here on the distaff. If you haven't a wheel at your school, look at the picture (Fig. 111). The woman is holding the flax fibers which come from the distaff; and, as her foot turns the wheel and the flax in her fingers is fed to the spindle, it is twisted. Spinning of flax is a very old invention. It was once done with just a spindle like the woman has in the picture on page 71 (Fig. 44). This is the secret of how flax spinning is done to-day. The flax is opened at the mill and graded according to color and quality. It is then combed. This process is called hackling (Fig. 112). It is sometimes done by hand, and the worker draws the flax over the iron teeth of a comb. The straightened fibers are left and are called line; and the combed-out fibers are called tow. This first combing process is sometimes called roughing instead of hackling. The line is then combed again in a big machine which removes any loose tow. Tow is often put in a carding machine and made into yarn for coarser purposes; but the long straight line is used for the better materials. The line, after it is hackled, is placed on a spread board; and the process is called spreading. You can see in the picture (Fig. 113) that the bundles of flax yarn are spread and overlapped as they enter the machine. Now you know how the yarn begins to be made of continuous length. The flax comes from this machine in a rope and is something like the cotton rope or roving as it leaves the carding machine; but flax is brown and stiff, not so soft as cotton. Can you find in the picture (Fig. 113) the cans ready to receive the flax rovings as they come from the spreading machine? They are at the back of the machine. The rovings are then ready to be wound on spools and to be twisted to make them strong. This is done in the same way as the cotton. The spools are put in at the top of the machine; they hold the rovings. The rovings pass over rollers which draw out and twist and wind the yarn on the spools below. This is called spinning. (Fig. 46 shows the cotton spinning machines.) Flax spinning is somewhat like this. Perhaps some day you may be able to visit a flax mill and see the spinning frames, as the machines are called, at work. Uncle John says that yarns are made of coarse or of very fine grade, according to the fineness of cloth desired.