Hawkins electrical guide. Questions, answers & illustrations; a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833- · New York, T. Audel · leaf 216
s electro-lyte; the acid should be made from sulphur and not from pyrites,as the latter is liable to contain injurious substances. 904 HA WKINS ELECTRICITY Ques. How is the electrolyte prepared ? Ans. One part of chemically pure concentrated svdphuric acidis mixed with several parts of water. The… … CDC END TOP CONNECTORS
Electrical engineering
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