The occasional spelling "Alan" in references can be ascribed to typographical mistakes.
That word "invariable" is not a typographical mistake.
In the present impression some trifling typographical mistakes are corrected, and the phraseology has been rendered uniform throughout.
Most corrections are the result of reporting errors or typographical mistakes, although sometimes the newspaper was provided incorrect information.
The 2003 reprint corrects several typographical mistakes.
This memorial had a lengthy inscription and is known as the Pillar of Eliseg owing to a typographical mistake by the original carver.
The message had been written on a napkin and contained grammatical and typographical mistakes.
The story just made me so angry; blood in the eyes tends to obscure typographical mistakes, never even mind the appalling structure of the first sentence.
Leonard Woolf called it one of the worst printed books ever published because of the typographical mistakes in it.
(Occasionally, these are called entopic phenomena, which is probably a typographical mistake.)