Lettuce and Cress Salad.

Cut up lettuce and cresses, having washed both well, and pile in a salad bowl; then pour over them a dressing made by beating together four tablespoonfuls of vinegar, one teaspoonful each of salt and sugar, half as much mustard, and when these are well mixed, adding, gradually, two tablespoonfuls of best salad oil. Toss with a silver fork, and serve.