"One of the simplest of the tissues in the body is called the <em>epithelium</em>, and its cells are called epithelial cells. It serves as a lining of various cavities, a covering for the surface of the body, and the essential part of various organs called glands." &mdash; Blaisedell, 1904

Cross section of the epithelium

"One of the simplest of the tissues in the body is called the epithelium, and its cells are…

"Until hard rock is reached the sides of the excavation are supported temporarily by a lining"&mdash;Finley, 1917

Shaft lining

"Until hard rock is reached the sides of the excavation are supported temporarily by a lining"—Finley,…

"Until hard rock is reached the sides of the excavation are supported temporarily by a lining"&mdash;Finley, 1917

Shaft lining

"Until hard rock is reached the sides of the excavation are supported temporarily by a lining"—Finley,…

A diagram showing the manufacture of a shoe.

Manufacture of a shoe

A diagram showing the manufacture of a shoe.