"The Adventure of the Speckled Band", where the instrument of murder was a venomous snake.
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It is more properly ophiology.
221B Baker Street still exists and is a museum for Sherlock Holmes memorabilia.
I suppose that a relation doesn't exist.
Technically, not a relation but a query, but that is known as a UNION.
That it, and we, exist.
In the BBC series "Sherlock," the character of Mariette does not exist. However, the show features various characters from Arthur Conan Doyle's original Sherlock Holmes stories, as well as new characters created for the series. If you meant a different character or context, please provide more details for clarification.
A relation doesn't exist.
Any relation exist.
A relation doesn't exist.
Very probable a significant relation doesn't exist.
No. They used what was known as a dark lantern (aka bull's-eye) which had a shutter to hide the internal flame.
A chemical laboratory cannot exist now without apparatuses.
I suppose that a relation doesn't exist.