He wore a Scotch cap and a horseshoe pin in his cravat.
One might have imagined him to be an errand boy, a clerk, a chauffeur, a salesman or a house man.

You might have placed him in almost any middle-class walk in life.

Perhaps, thought Arthur, he might even be a good detective! yet his personality scarcely indicated it.
"Mershone in, Billy ?" the detective asked the desk sergeant.
"Room 24.

Want him ?" "Not now.

When is he likely to go ?" "When Parker relieves me.