At present let us be content with knowing that there was no reason for the hat and suit he wore save a mistaken idea of artistic suitability.

"If I am going to be a tramp," he had said, "I want to look like a tramp." He didn't, but his hat and coat did.
He felt like a tramp, though, if to feel like a tramp is to feel hot and sticky and hungry.

Perhaps real tramps do not feel like this.

Perhaps they enjoy walking.

At any rate they do not carry knapsacks, but betray a touching faith in Providence in the matter of clean linen and tooth brushes.
Before the top of the hill was reached, Dr.Callandar wished devoutly that in this last respect he had behaved like the real thing.