Primers. Being a Series of Helpful Primers on Electrical Subjects, for the Use of Students and General Readers. Vol, I. Theory - Vol. II. Practice

Due volumi in-8° (21,3 x 13,7 cm), pp., con numerazione continua, (6), 126, 31, (1); (6), 127-284, 31, (1), legatura editoriale, con titoli al piatto anteriore e al dorso. Tagli decorati a spruzzo. Con molte figure in bianco e nero nel testo. Al Volume primo, piccole fioriture al verso della guardia anteriore e al frontespizio; nota a matita, di mano coeva, nel bordo superiore della pagina ospitante l'indice. Al Volume secondo, fioriture al verso della guardia anteriore e al frontespizio; una lettera reintegrata a matita a pagina 217. Per il resto, esemplare ben conservato. Contents: Volume I. Theory. 1. The Effects of an Electric Current. 2. Conductors and Insulators. 3. Ohm's Law. 4. Primary Batteries. 5. Arrangement of Batteries. 6. Electrolysis. 7. Secondary Batteries. 8. Lines of Force. 9. Magnets. 10. Electrical Units. 11. The Galvanometer. 12. Electrical Measuring Instruments. 13. The Wheatstone Bridge. 14. The Electrometer. 15. The Induction Coil. 16. Alternating Currents. 17. The Leyden Jar. 18. Influence Machines. 19. Lightning Protectors. 20. Thermopiles. Volume II. Practice. 21. The Electric Telegraph. 22. Automatic and Duplex Telegraphy. 23. The Laying and Repair of Submarine Cables. 24. Testing Submarine Cables. 25. The Telephone. 26. Dynamos. 27. Motors. 28. Transformers. 29. The Arc Lamp. 30. The Incandescent Lamp. 31. Underground Mains. 32. Electric Meters. 33. Electric Light Safety Devices. 34. Systems of Electric Distribution. 35. Electric Transmission of Energy. 36. Electric Traction. 37. Electro Deposition. 38. Electric Welding.