PLATE XIV. 



liUMAN SKIN AKD HAIR. 



1. A vertical section of Epidermis, Human Skin, showing tlie sweat-glands, surrounded 



by the fat-globules, the ducts passing upwards through the epithelial layer to the 

 external cuticle, magnified 250 diameters. 



2. A single Hair, seen near its bulbous extremity, and surrounded by involuntaiy 



muscular fibre. 



3. A portion of involuntaiy muscular fibre isolated, and magnified 350 diameters. 



