Changed "reconcilable" to "reconcileable" on page 240: "not easily reconcileable."
Preserved the hyphen in "counter-acting" on page 280. Usually this is spelled without the hyphen, but this instance is in a quotation.
Moved parenthesis that was after "to" to before it on page 321: "(to return to a former example)."
Put "i.e." in italics on page 335: "i.e. by a power of some sort."
Changed "paralyzed" to "paralysed" on page 389: "nerves of motion were paralysed."
The footnote from page 396 refers to the footnote on page 270. There is no such footnote. The intent may be to refer to the [footnote on page 268]. However, the text was not changed.
Added the dropped "w" in "which" on page 420: "which the progress of the inquiry."
Changed "developes" to "develops" on page 456: "the prime conductor develops."
Removed the additional period at the end of the footnote on page 457: "Pp. 159-162."
Added the dropped "l" to "essential" on page 515: "an essential requisite."