Niagara Falls (N.Yand Ont.)

Rolling over

by T. de (Tom) Vries,

by Robert W. Bruère,

How hundreds of cities have made hydraulic power a public servant

by Harper’s Staff,

by Harper’s Staff,

by Harrison Rhodes,

Fresh water and inland valleys

by Harper’s Staff,

by Jane Meade Welch,

by Harper’s Staff,

by Harper’s Staff,

by Charles Henry Webb,

by William C. (William Carey) Richards,