Transcriber’s Note: Blank pages have been deleted. Some illustrations may have been moved. Notes at the bottom of pages in the text were converted to footnotes and footnote tags were added to the text itself. The footnotes are now located prior to this section. When the author’s preference can be determined, we have rendered consistent on a per-word-pair basis the hyphenation or spacing of such pairs when repeated in the same grammatical context. The publisher’s inadvertent omissions of important punctuation have been corrected. Duplicative front matter has been removed. Ditto marks may have been replaced by the text represented.
The following list indicates any additional changes. The page number represents that of the original publication and applies in this etext except for footnotes and illustrations since they may have been moved.
TOC = Table of Contents
TOC [Added INTRODUCTORY CHAPTER and SIGNS AND SYMBOLS]
TOC between electric and netic[magnetic] circuits
TOC action of Toepler-Holz[Holtz] machine
4 species inhabiting the Mediteranean[Mediterranean]
14 would fly from it without any elecrical[electrical]
16 pith balls [on] strips of paper C, D, E, as shown.
28 between the source and rerminal[terminal].
39 a certain anount[amount] of work
43 When metals differeing[differing] from each other
61 Various zincs; fig. 58 Fuller; fig. 59 Daniel[Daniell]
62 Various carbons; fig. 61 Cylindrical from[form],
63 fig. 68 Lockwood; fig. 69 fire alram[alarm].
66 A paralled[paralleled] or multiple connection
70 but no other aproaches[approaches]it
93 With this prelimary[preliminary] caution,
96 If a current of 10 amperes flow[flows] in a wire
98 as an electrotylic[electrolytic] cell,
99 rising from the kathode[cathode] P′ is hydrogen
100 hydrogen atoms in their journey towards b[B] meet
100 at the electrodues[electrodes] and not
133 VI.[6.] The approach and recession of a conductor 142 3[2]. Vibrator coils;
142 2[3]. Condenser coils.
143 soaked in shellac dissolved in alchool[alcohol]
151 the hammer or piece of of[2nd ‘of’ del] iron
170 FIG.[FIGS.] 169 to 173.-- The sine curve
209 An extreme design, suggested by Dobrowolsky[Dobrowolski],