Sunlight : Good Insects : Good To Flame : Burns readily 2.3 ANIMAL FIBERS: Natural protein fibers are obtained from animal sources like hair and other secretion, fibers include covering from such animals as sheep, mohair goat, cashmere goat and camel. Secretions are obtained from the larva, or worm stage, of the silkworm, which spins the cocoon from which silk fibers are obtained and from the spider which spins fine fibers in making its web. There are some properties of hair fibers and secretions which are quite similar and on the other hand there are properties which are totally different.

10.3 PRINCIPLES FOR PATTERN DRAFTING: Drafting can be done on ordinary brown paper which should not however be too thin. To obtain an accurate draft, use a sharp pencil, and a ruler for, drawing straight lines. To get the corners at right angles, keep an L scale or set squares ready. Before drafting, it is important to understand the procedures and instructions clearly, and to have practice in drawing a well balanced pattern with smooth curves and straight lines. You must understand the following principles before starting to attempt drafting.