Adaptations
The story was adapted for the 1968 BBC series with Peter Cushing. The episode is now lost.
The Granada TV version with Jeremy Brett was relatively faithful to the original story; however, it has a comic relief ending when Holmes's chemical experiment causes the flat to fill up with smoke, and brings the fire brigade to the scene. (The chemical experiment-sans smoke-is from "The Adventure of the Naval Treaty".)
Read more about this topic: The Adventure Of The Solitary Cyclist