=Gingham, calico, and chambray are pretty and useful.= Let us look at some of the other cotton materials. Miss James had many samples for the girls to see. Grandmother Stark sent over some from her piece bag. Perhaps your teacher will bring some, and your mother may send some, too. There are several samples of material for the aprons and caps. The blue and white, and pink and white stripes and checks are ginghams; the white with the little spots and thin stripes are percales. The plain blues and pinks are chambray; the plain blues and pinks of cheaper grade are ginghams. Those with printed designs on one side are calicos. The dark brown and blue samples are heavier and are called denims. Suppose we make a book of brown paper and mount all the cotton materials we can find. This book can be kept at the school for reference. Everybody must help. See if it is possible to write under each sample the name and common uses of the material as well as its price. Miss James had some smooth brown paper to fold for a book. She suggested ways to bind it. If each girl wishes her own book, a number can be made if so many samples can be obtained. Barbara and Marjorie decide to make their books at home. [Illustration: FIG. 3.--The girls made brown paper books for their textile samples.] =There are several varieties of cotton flannel.= The fuzzy soft cotton samples are outing flannels and canton flannels. What is the difference in their appearance? The canton flannel is heavier, and it has one twilled surface and one fuzzy surface. It costs 12 cents a yard and comes about 30 inches in width. Outing flannel, which is fuzzy on both sides, can be bought from 10 to 35 cents a yard, and it is 36 inches wide. The flannelette samples are also soft and cost from 8 to 12 cents per yard; but flannelette is only 27 inches in width. It has a slight nap or fuzzy surface, and is sometimes plain in color and sometimes printed on one surface. Compare these three materials. Outing flannel is very dangerous unless treated with ammonium phosphate. Dissolve one quarter of a pound of ammonium phosphate, which costs about 25 cents, in one gallon of cold water. Soak the clothing in this solution for five minutes. This is easily done and may prevent much trouble. Can you tell why outing flannel is dangerous unless it is treated? =Many other cotton materials are useful.= Miss James has ever so many more cotton materials. She told the girls the use and name of each. Can we learn them all? _Cheesecloth._ Thin, sheer, plain weave. Costs from 5 to 12 cents per yard, and comes 1 yard wide. It is used for wrapping butter or cheese, for curtains, and for many other purposes. It may be used for baby, too, because it is so soft. The unbleached cheesecloth costs from 4 to 12 cents and is 1 yard wide.