SCIENTIFIC AMERICAN, New York, January 22, 1910 The front page of the issue features an illustration of "Cutting a Redwood Tree with a Saw Driven by an Engine" which also has an accompanying article inside. Within the issue are articles pertaining to: "The Scherl Gyroscopic Monorail Car - The Principle of Its Operation"; "The Death of Leon Delagrange"; "A New English Triplane"; "Aviators' Costumes and a Machine for Teaching Beginners"; "An Electric Perforating Pen"; "The New naval Harbor at Dover (England)"; and additional articles and advertisements.

Complete in 16 pages with a small repair made in the lower margin and a small piece missing from the right margin of the front page, otherwise in good condition.