Sentence:  The other day I heard you complaining of the nuisance that small ragged street-boys are to you whenever you go out. ... You wished that some one would do something to clear away these little <WSD>Arabs</WSD>, as you are pleased to call them, so that a fine old English gentleman—as you are pleased to think yourself—might take his exercise in peace. 
Meaning of the word marked with <WSD> tags:  A street Arab.