Hack, hunter, pony, phaeton-horse, he was either possessor of the very animal you wanted, or could suit you with it at twenty-four hours' notice; yet if you met him by accident riding in the Park, he was sure to tell you he had been mounted by a friend; if you saw him driving a teamand few could handle four horses in a crowded thoroughfare with more neatness and precisionyou might safely wager it was from the box of another man's coach.