How to make a Soothing Drink for Coughs

Take of marsh-mallow roots and of liquorice roots each one ounce; of linseed, half an ounce; shave the roots very thinly; put them and the linseed into a clean earthen pot with one quart of hot water, cover with the lid, and set the whole on the hob of the fire to simmer for half an hour or more; then strain the drink into a clean jug, sweeten with honey, and when it has become quite cold, let it be given in small quantities several times in the course of the day. This mucilaginous beverage is most beneficial in relieving persons who are suffering from cold on the chest, and also those who are afflicted with gravel, etc.

Source: A Plain Cookery Book for the Working Classes, C.E. Francatelli