This only appeared in the very first U. Their order of appearance was switched in following editions.
Half Blood Prince is a first state / error edition: A misprint has the book end on page #652 when it should be numbered page #672. Page 100: And when you've got your eleven outstanding' O. " It should say "And when you've got your ten' Outstanding' O. " Page 476: "twenty-four" was changed to "twelve in later editions. Page 591-2: a whole paragraph was changed in later editions Order of the Phoenix is a f irst state / error edition: Errors on pages #683 & 684: "they found seats in the topmost row of the stands" only to find on the next page that Hagrid had squeezed his way all along the row behind.There's no row behind them. Deathly Hallows is a f irst state / error edition. A misprint has the last page numbered as #759 instead of #784.