Locomotive Engine Running and Management

by Angus Sinclair

PREPARING FOR THE EXPERIMENTS.

In bringing in water for examination, it is best to have it drawn from the water-tank into a perfectly clean jug, which should be corked and labeled. Weigh an evaporating dish, noting down the exact weight, and on a sand-bath evaporate one quart or half a gallon of the water to be inspected. When the dish becomes dry, rub off all dust that may be adhering to the bottom, and weigh the dish. The added weight will indicate approximately the total amount of solid matter in the water. Note that down, and every other detail of the experiments.