The following lists of herbs may be used in combination to give supplements to the normal diet, or to provide a general tonic. A very good tonic of this type would consist of equal parts of Yellow Dock root, Irish Moss, and Horsetail Grass, made into a tea. This would supply iron, iodine, and calcium. To make the tea, use a heaping tsp. of the herb mixture you choose in a cupful of boiling water. Let stand until cool. Drink one or two cups per day, as needed.   IRON: Burdock Devil's bit Meadow sweet Mullein leaves Restharrow Salep Silver weed Stinging nettle Strawberry leaves Toad flax Yellow dock   IODINE: Iceland moss Irish moss Kelp Sarsaparilla   CALCIUM: Chamomile Cleavers Coltsfoot Dandelion Horsetail grass Meadow sweet Pimpernel Plantain Restharrow Shepherd's purse Silver weed Toad flax   SULPHUR: Broom tops Calamus Coltsfoot Eyebright Fennel seed Meadow sweet Mullein Pimpernel Plantain leaves Restharrow Scouring rush Shepherd's purse Silver weed Stinging nettle Waywort   PHOSPHORUS: Apples Calamus Caraway seed Chickweed Houseleek Licorice root Marigold flowers Meadow sweet Sweet flag   POTASSIUM: American centaury Birch bark Borage Calamus Carrot leaves Chamomile flowers (German) Coltsfoot Comfrey Couch grass Dandelion Eyebright Fennel seed Mullein Nettle leaves Oak bark Plantain leaves Primrose flowers Sanicle Summer savory Walnut leaves Waywort Yarrow   SILICON: Found in all plants, but in Horsetail in particular   MAGNESIUM: Black willow bark Carrot leaves Devil's-bit Meadow sweet Mullein leaves Primrose Restharrow Silver weed Toad flax Walnut leaves   CHLORINE: All plants contain chlorine in the form of sodium chloride   SODIUM: Black willow Cleavers Devil's-bit Fennel seed Meadow sweet Mistletoe Restharrow Shepherd's purse Stinging nettle Waywort