Silk

The only natural fiber that comes in a filament form: from 300 to 1,600 yards in length as reeled from the cocoon, cultivated or wild. When the silkworm begins its spinning, two filaments are emitted from the "silk ducts" which are covered by SILK GUM or SERICIN from the sacks before they come from the mouth. As the liquid is emitted by the silkworm, it solifies on contact with the air. A single filiments called BRINS. The twofiliments by this time are cemented togather by the silk gum or sericin. A solidified filament is called FIBROIN or SLIK. The two filiments joined togather are know as the CACOON TREATMENT or BAVE.