He was at first greatly distressed, but Thomas comforted him by assuring him that all dogs were colour–blind, and probably all mammals but apes and men. And he reminded Sirius that dogs were at any rate far superior in hearing and smelling. Sirius had long known that human noses were very poor instruments. He had often been contemptuous because Plaxy could not smell out her mother’s track in the garden, or tell with her nose whether a certain footprint was Gelert’s or another dog’s. Moreover at an early age he was surprised and disappointed at her obtuseness to all the mysterious and exciting smells of the countryside after rain. While she mildly enjoyed an indiscriminate freshness and fragrance, he would analyse the messages of the breeze with quivering nostrils, gasping out words between
