human
I succeeded. On one of these files or knife blades I have found and identified the fibers of that towel. I do not yet know the person, but I know the mark placed by Mackay on the outside of the little envelope, and when I tell Mackay the mark he will name the guilty person.
gpt
Mr. Kennedy! Manton spoke up, impulsively,
human
This particular towel, in addition to the itching salve, was thoroughly impregnated with a colorless chemical which changed the composition of the fibers in a way easily distinguishing them from the others under the microscope. Do you see, Mr. Manton?