This section of the book is from the "Stories of Animal Sagacity" book, by William Henry Giles Kingston.
A grocer owned a Newfoundland dog, which used frequently to take charge of the shop. While thus lying down with his nose between his paws, he observed one of the porters frequently visiting the till. He suspected that the man had no business to go there. He therefore watched him, and, following him, observed him hide the money he had taken in the stable. The dog, on this, attempted to lead several persons in whom he had confidence towards the place, by pulling in a peculiar manner at their clothes. They took no heed of him, till at length one of the apprentices going to the stable, the dog followed him and began scratching at a heap of rubbish in a corner. The young man’s attention being aroused, he watched the animal, which soon scratched up several pieces of money. The apprentice, collecting them, evidently to the dog’s satisfaction, took them to his master, who marked them, and restored them to the place where they were discovered.
The porter, who for some other cause was suspected, was at length arrested, when some of the marked coin was found on him. On being taken before a magistrate, he confessed his guilt, and was convicted of the theft.