Scrub, wash, and peel the potatoes thinly. Lay them in cold water; then put them in a steamer over a saucepan of boiling water, and steam until they are soft. Sprinkle them with a little salt. Serve in a hot dish. If no steamer is available, put the potatoes in a colander over a pan half-full of boiling water, but see that the lid of the pan fits closely on the colander, and that no holes in the colander are above the top of the saucepan. It will take longer to steam potatoes than to boil them, but none of the goodness of the potato will be wasted in the water, as is inevitably the case when they are boiled.