Cut up the moist, juicy vegetables such as celery, spinach, onions and tomatoes, place them with the water in a casserole, put lid on and slowly cook for about one hour until enough juice is extracted to safely add the rest of the cut-up vegetables. The whole should now be placed in a slightly greater heat and simmered until the last added vegetables are quite tender. The mixture should be stirred occasionally with a wooden spoon.
The Healthy Life Cook Book (1915).