Sur les progrès de la science électrique et les nouvelles machines d'induction
A French technical treatise by J. Boulanger on advances in electrical science and new induction machines, published in Paris by Gauthier-Villars in 1885 for engineers and instrument makers. Wood engravings signed by Poyet and Minot show dynamos, electromagnets and armatures in three-quarter view, plus hatched sectional diagrams — useful for dense line shading, machined hardware and cutaway drafting conventions.
