Transcriber's Notes:
Obvious typos and inconsistencies in spelling have been corrected:
- p31. intrument -> instrument
- p35. mantain -> maintain
- p48. represents the [the] counter-electro-motive force
- p64. 2 volts × .1 ampere = .6 watts. -> 6 volts × .1 ampere = .6 watts.
The correct voltage is deduced from the preceding paragraph. - p141. 55 ampere -> .55 ampere
- p168. familar -> familiar
- p173. preceptible -> perceptible
- p229. - p230. countershaft -> counter shaft
- p259. H_{2}SO^{4} -> H_{2}SO_{4}
- p295. Note C refers to C´ not C´´ and these should be labelled C, and C,, to denote octaves below middle C.
- p316. electri-tricity -> electricity
- p356. oufit -> outfit
Throughout the text:
- The few cases of "volt-meter" have been changed to "volt meter" which has been used for the majority of the text.
- The single instances of watt meter and watt-meter have been changed to wattmeter which has been used for the majority of the text.
- The few cases of "electro magnet" have been changed to "electro-magnet" which has been used for the majority of the text.
In the Table of Contents:
- Chapter XII page number changed from 118 to 218
- Chapter XV name changed from "Electricity from Chemical Action and Chemical Action from Electricity" to match text which reads "ELECTRIC CURRENTS FROM CHEMICAL ACTION AND CHEMICAL ACTION FROM ELECTRIC CURRENTS"
In the Table of Illustrations: