www.alphadictionary.com

Monograph (noun)
A book, paper, essay or treatise on a specific, narrow subject.
[From mono-, one; -graph, something written.]

"The historian grew tired of writing scholarly monographs on obscure aspects of ancient civilization, and decided to write a general history of the world."

"The musicologist produced monographs about female bandleaders, German jazz, and the development of drumsticks."

Not to be confused with monogram.

So reading a monograph aloud could be a singularly boring monologue? (snicker)

E

Hmm, singularly boring, or simply monotonous?

I'm not sur how Sherlock found the time to do any detecting, as he seems to have produced a plethora of monographs. Seems few stories go by without his modestly mentioning one.