Here is the print of a foot in mould upon the sill.

And here is a circular muddy mark, and here again upon the floor, and here again by the table.

See here, Watson! This is really a very pretty demonstration." I looked at the round, well-defined muddy discs.

"This is not a footmark," said I.
"It is something much more valuable to us.

It is the impression of a wooden stump.