- “Inpector” was changed to “Inspector” (Chapter VI).
- “ect.” was changed to “etc.” (Chapter VI).
- “Phys,” was changed to “Phys.” (Chapter VI).
- “Brittanica” was changed to “Britannica” (Chapter VII).
- “occcasionally” was changed to “occasionally” (Chapter IX).
- “impossible for use” was changed to “impossible for us” (Chapter XI).
- “Duhamel Freres” was changed to “Duhamel Frères” (Chapter XV).
- “testting” was changed to “testing” (Chapter XVII).
- “a complicate” was changed to “a complicated” (Chapter XIX).
- “realiable” was changed to “reliable” (Chapter XXI).
- “fiften” was changed to “fifteen” (Chapter XXV).
- “faint preliminary whim” was changed to “faint preliminary whirr” (Chapter XXV).
- “startingly” was changed to “startlingly” (Chapter XXV).
- “necesity” was changed to “necessity” (Chapter XXVI).
- Seven occurrences of mismatched quotation marks have been repaired.
New original cover art included with this eBook is granted to the public domain.