1. Laboratory #14: HAIR AND FIBER Copyright © 2014, Elsevier Inc. All rights reserved. 1

2. Cat hair under a microscope. Copyright © 2014, Elsevier Inc. All rights reserved. 2 iStockphoto

3. Hair root. Copyright © 2014, Elsevier Inc. All rights reserved. 3 iStockphoto

4. Dust under a microscope. Copyright © 2014, Elsevier Inc. All rights reserved. 4 iStockphoto

5. Fibers. Copyright © 2014, Elsevier Inc. All rights reserved. 5

6. Drawing of hair sample. Copyright © 2014, Elsevier Inc. All rights reserved. 6