The Tribesmen

The Wonder Island Boys: The Tribesmen by Roger Finlay.

Thrilling adventures by sea and land of two boys and an aged Professor who are cast away on an island with absolutely nothing but their clothing. By gradual and natural stages they succeed in constructing all forms of devices used in the mechanical arts and learn the scientific theories involved in every walk of life. These subjects are all treated in an incidental and natural way in the progress of events, from the most fundamental standpoint without technicalities, and include every department of knowledge. Numerous illustrations accompany the text.

Two thousand things every boy ought to know. Every page a romance. Every line a fact.