At the time of which I speak, Holmes had been back for some months, and I at his request had sold my practice and returned to share the old quarters in Baker Street. (The Adventure of the Norwood Builder)
Some post-Empty House thoughts.

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At the time of which I speak, Holmes had been back for some months, and I at his request had sold my practice and returned to share the old quarters in Baker Street. (The Adventure of the Norwood Builder)
Some post-Empty House thoughts.

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My boy gets so anxious and depressed he can't even eat-
"It was more than a stain. It was the well-marked print of a thumb." The Adventure of the Norwood Builder. Published in Collier's. Frederic Dorr Steele, 1903
Source
Jeremy Brett and David Burke in Sherlock Holmes (ITV Granada) “The Norwood Builder” (1985)
OK yeah no @skyriderwednesday was right, putting an "I'm booored" case in the middle of 1895 is B-G deliberately being a chronology goblin. There is no other explanation for this.
what does the giant book say? come here, giant book.
BECAUSE AUGUST OF 1894 WASN'T WARM ENOUGH?

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Vernet and Verner
In The Adventure of the Greek Interpreter some details about Sherlock Holmes' family are mentioned: he has an older brother called Mycroft, his ancestors were country squires and he's related to “the French artist Vernet” (which one of them, I don't know). Now in The Adventure of the Norwood Builder Watson says that he sold his practice to a young doctor called Verner, a distant relative of Holmes.
Verner is so similar to Vernet, that probably another branch of the Vernet family migrated from France to England and changed their surname to Verner intentionally (they wanted a new surname for a new life) or accidentally (bureaucracy, you know?). I like the idea of teeneagers Holmes meeting their distant baby cousin and their parents commenting about the mistake and maybe laughing about that.
The "art in the blood" is not affected by the mispelling.
The Norwood Builder
Arthur Conan Doyle lived in South Norwood from 1891 to 1894 i.e. when he wrote the first two volumes. The area is 7.8 miles from the centre of London i.e. Charing Cross and was in Surrey at the time, although it was in the London SE postal district, being SE25 today. The area is a popular one for commuters, with Norwood Junction having no less than six operational platforms for services towards London Bridge; the Overground's East London Line also calls there. ACD does obfuscate some of the locations though.
Blackheath is located 6.4 miles SE from Charing Cross, on what is now the Greenwich/Lewisham boundary.
President Murillo forms a key part of "Wisteria Lodge", which we have already covered.
The Dutch steamship Friesland is also mentioned in The Lost World where it spots an escaped pterodactyl.
The Victorian era saw a massive boom in housebuilding due to a growing population that needed to live near their industrial workplaces - or in close proximity to a railway station so they could commute to their offices. Some of the housing was better than others, with the stuff for the poor being basically slums and mostly cleared away in later decades.
The Anerley Arms, located next to Anerley station (one stop up the line towards London from Norwood Junction), is still an active pub although no longer does hotel accommodation. I've been there quite a few times after events at the nearby Town Hall for an evening meal before heading home. They have a number of Holmes-related pictures on the walls, but don't make the canon connection explicit.
Anerley station itself is two platforms either side of a four-line railway; the original station buildings have been replaced.
It's rather hard to destroy all traces of a body with a wood-based fire set by an amateur. You need a functioning crematorium and England didn't exactly have many of those free for use.
The fire extinguisher as we know it today was around by this time.
It was just a prank