| Year | 1917 |
| Date | 05-Jul |
| Volume | 37 |
| Issue | 845 |
| Page | 1 |
| Category | Electrical |
| Part | |
| Title | Alternating and Direct Currents |
| Author | "Calculus" |
| Notes | A conductor in a magnetic field, method of finding the direction of current, single coil A.C. & D.C. generators, direct current armature winding, details of complete alternator, coils in cente of poles, three-phase pressure curves, coils between poles, two-phase wave winding, three-phase winding, single-phase loop winding |