Analytical solution of the problem of topographic mapping from comparator measurements on aerial photographs /

"The first of a series of papers on topographic mapping by aerial photography."

A rapidly converging solution of the conformal mapping problem of hydrodynamics /

Mode of access: Internet.

The education of the wage-earners; a contribution toward the solution of the educational problem of democracy,

Introductory: Thomas Davidson and his philosophy, by the editor.--The task of the twentieth century.--The educational problems set by the nineteenth century to the twentieth.--The history of the experiment.--The underlying spirit as shown by the letters written by Mr. Davidson to his class.--The vitality of the ideal as shown by the life of the movement after the death of its founder, by the editor.