Gregson in a depreciatory voice.

"Mean? Why, it means that the writer was going to put the
female name Rachel, but was disturbed before he or she had
time to finish. You mark my words, when this case comes to
be cleared up you will find that a woman named Rachel has
something to do with it. It's all very well for you to laugh,
Mr. Sherlock Holmes. You may be very smart and clever,
but the old hound is the best, when all is said and done."

"I really beg your pardon!" said my companion, who had
ruffled the little man's temper by bursting into an explosion
of laughter. "You certainly have the credit of being the
first of us to find this out, and, as you say, it bears every
mark of having been written by the other participant in last
night's mystery. I have not had time to examine this room
yet, but with your permission I shall do so now."

As he spoke, he whipped a tape measure and a large round
magnifying glass from his pocket. With these two implements
he trotted noiselessly about the room, sometimes stopping,
occasionally kneeling, and once lying flat upon his face.
So engrossed was he with his occupation that he appeared to
have forgotten our presence, for he chattered away to himself
under his breath the whole time, keeping up a running fire of
exclamations, groans, whistles, and little cries suggestive
of encouragement and of hope. As I watched him I was
irresistibly reminded of a pure-blooded well-trained foxhound
as it dashes backwards and forwards through the covert,
whining in its eagerness, until it comes across the lost