12. (a) What is the chief constituent of the vegetable fibers? (b) How does their affinity for dyestuffs compare with wool and silk? (c) How do the alkalies affect wool?
13. Describe the principal weaves and give examples of each.
14. (a) How are cotton and flax bleached? (b) What is a mordant? (c) How should material be prepared for dyeing? (d) State what you know about old time methods of dyeing.
15. How are print goods made? Name some printed fabrics.
16. Define woolens and worsteds.
17. Describe the finishing of woolen and worsted cloths.
18. What is noil; shoddy; felt; flocks?
19. With what dress goods have you had experience, and with what results?
20. What factors determine the use of fabrics?
21. Of what value is the study of textiles? What have you gained by the study of this lesson?