J. S. Zerbe

Electricity for Boys    J. S. Zerbe    Publisher’s warning — This book was originally published in 1914.It does an excellent job of explaining basics… Leggi tutto »Electricity for Boys

Practical Mechanics for Boys    J. S. Zerbe    Instruction in practical household technology, first published in 1914. 60 black-and-white illustrations. “In language which every… Leggi tutto »Practical Mechanics for Boys