Note 17 — Chapter III · HOW A REAL SUBMARINE IS MADE AND WORKS
Reading edition
For a description of the gyroscopic compass, see Inventing for Boys, by the present author and published by the Frederick A. Stokes Company, New York.
Reading edition
For a description of the gyroscopic compass, see Inventing for Boys, by the present author and published by the Frederick A. Stokes Company, New York.