In The Blue Carbuncle, how does Holmes conclude, "The man is clever, middle-aged, and uses lime cream in his hair."?


Holmes makes the assumption of cleverness by the size of the head on which the hat was worn, with the idea being a larger head means more in it.

The remnants of cut hair inside the brim of the hat indicates the age of the owner, and the fact that he uses lime cream as well.

Updated on April 11, 2018

Original Article:

Plot Summary of the Blue Carbuncle
By Colin Quartermain