From the INTRODUCTION:
"The articles here presented are modern and unhackneyed. Selected primarily as models for teaching the methods of exposition employed in the explanation of mechanisms, processes, and ideas, they are nevertheless sufficiently representative of certain tendencies in science to be of intrinsic value. Indeed, each author is a recognized authority."

Contents:
INTRODUCTION
THE EXPOSITION OF A MECHANISM
THE LEVERS OF THE HUMAN BODY
THE EXPOSITION OF A MACHINE
THE MERGENTHALER LINOTYPE. PHILIP T. DODGE
THE EXPOSITION OF A PROCESS IN NATURE
THE PEA WEEVIL. JEAN HENRI FABRE. Translated by Bernard Miall
THE EXPOSITION OF A MANUFACTURING PROCESSM
MODERN PAPER-MAKING. J. W. BUTLER PAPER COMPANY
THE EXPOSITION OF AN IDEA
THE GOSPEL OF RELAXATION. WILLIAM JAMES
SCIENCE AND RELIGION. CHARLES PROTEUS STEINMETZ
BIOGRAPHICAL AND CRITICAL NOTES