translation.en: He then had it returned and obtained another--a most instructive incident, since it proved conclusively to my mind that we were dealing with a real hound, as no other supposition could explain this anxiety to obtain an old boot and this indifference to a new one.
translation.pl: Posługacz hotelowy dostarczył mu obuwia, za hojną pewnie opłatą; lecz pierwszy but wykradziony, był nowy; Stapleton kazał go podrzucić i dostał drugi, noszony.