"At least it cannot be your health," said he, as his keen eyes darted over her; "so ardent a bicyclist must be full of energy."

She glanced down in surprise at her own feet, and I observed the slight roughening of the side of the sole caused by the friction of the edge of the pedal.

"Yes, I bicycle a good deal, Mr. Holmes, and that has something to do with my visit to you to-day."

My friend took the lady's ungloved hand and examined it with as close an attention and as little sentiment as a scientist would show to a specimen.

"You will excuse me, I am sure. It is my business," said he, as he dropped it. "I nearly fell into the error of supposing that you were typewriting. Of course, it is obvious that it is music. You observe the spatulate finger-end, Watson, which is common to both professions? There is a spirituality about the face, however" -- he gently turned it towards the light -- "which the typewriter does not generate. This lady is a musician."

"Yes, Mr. Holmes, I teach music."