Place in a vegetable dish lettuce that has been very carefully picked and washed each leaf by itself, to remove all insects. Cut across the dish four or five times, and sprinkle with salt. Fry a small piece of fat ham until brown, cut it in small pieces; when very hot add cup of good vinegar, and pour it boiling hot over the lettuce; mix it well with a fork, and garnish with slices of hard-boiled eggs. Be certain to have the fat so hot that when vinegar is poured in, it will boil immediately. Add half a cup or a cup of vinegar according to strength of vinegar and quantity of lettuce.