Holmes and Watson are on their way back to Baker Street from a freshly wrapped-up case when they hear shrieking from around the corner, and naturally they charge around the corner to see what's happening. What's happening turns out to be a giant snake with a mirror for a face. They get the woman it has cornered out of the way, and Watson goes for his revolver, but before he can bring the snake down it gets its face over both of them and they're somewhere else.
Holmes watches appreciatively and deduces things about the glassblower's personal life until he's at a reasonable stopping point.
"Hello! I'd like some flasks and pipes suitable for chemistry work . . ." he goes on to describe dimensions and quantities.
"Then I'll see you in a decacycle. Thank you! Oh, and one more thing; do you also make lenses?"
"Oh, good!" He also wants some lenses of such and such dimensions; his explanation is a bit roundabout because he doesn't know their words for type and amount of curvature, but it's understandable.
Considerably fewer people smoke here than did in England, so his analyses of tobacco ash are less interesting than his work on soil compositions. "I'd like the vessels first, please."
"Very good. I'll see you then."
Any further purchases of housewares should wait until Watson is available, even though he knows exactly what the latter's opinions will be. Back to exploring the city!
Eventually it gets to be dinnertime; when Watson gets back from work Holmes is in their new sitting room, finishing off some food.
"Good evening, Watson; I observe you enjoyed your second day of work."
"Yes, it was much like my first but with a slightly better grasp of the language."
Watson pinches the bridge of his nose. "We're not married, we're friends. But thanks all the same."
"I'm sure they will be excellent." He holds out a hand. "So what do you do?"
Watson is aware of Holmes' impending acquisition of lab equipment and what it's likely to mean for their floor and anything on it. "Thank you, but we'll prefer the wood floor."
"A wall hanging would be lovely if you have time." She'll probably forget, and if she doesn't, he will just not let Holmes shoot it full of holes. That's definitely a complete plan.