with an excellent set of teeth, careless in his
habits, and with no need to practise economy."

My friend threw out the information in a very offhand
way, but I saw that he cocked his eye at me to see if
I had followed his reasoning.

"You think a man must be well-to-do if he smokes a
seven-shilling pipe," said I.

"This is Grosvenor mixture at eightpence an ounce,"
Holmes answered, knocking a little out on his palm.
"As he might get an excellent smoke for half the
price, he has no need to practise economy."

"And the other points?"

"He has been in the habit of lighting his pipe at
lamps and gas-jets. You can see that it is quite
charred all down one side. Of course a match could
not have done that. Why should a man hold a match to
the side of his pipe? But you cannot light it at a
lamp without getting the bowl charred. And it is all
on the right side of the pipe. From that I gather
that he is a left-handed man. You hold your own pipe
to the lamp, and see how naturally you, being
right-handed, hold the left side to the flame. You
might do it once the other way, but not as a
constancy. This has always been held so. Then he has
bitten through his amber. It takes a muscular,