Transactions, or Proceedings.—The published reports of scientific and other societies.

Treasury stock.—The shares that belong to the company and which are used to provide it with working capital.

Trustees.—About the same thing as directors.

Tungsten.—A steel gray metallic element.

Tyro.—A beginner.

Useful art.—Anything which requires ingenuity to fashion, and which can be used for some good purpose.

Valid.—(1) That which holds good. (2) A patent that is founded on fact and in law.

Who’s Who.—A red book of noted men and women living in the United States.

Wholesaler.—One who buys and sells in large quantities.

Wing.—The main or supporting plane of an aeroplane.