Sage of the Arctic
The last stop should have your shipments from home, which were brought in from the port by horse. The officers are at lunch, but the noon tender is still there, staring fixedly at the clerk's table. "What are you guarding, sir?"
"This glass of water! Try as I may, it continues to escape into the air around me. In the morning, the temperature was 25°C, and I measured the vapor pressure at 23.8 mm Hg. This afternoon, as it is near the fire, it is 43.62°C. But I sat on my barometer, so I can no longer measure the vapor pressure..."