Infusion of Linseed.
Take of linseed, two spoonfuls; liquorice root, sliced, half an ounce; boiling water, three pints. Let them stand to infuse by the fire for some hours, and then strain off the liquor.
If an ounce of the leaves of colt's-foot be added to these ingredients, it will then be the pectoral infusion. Both these are emollient mucilaginous liqours, and may be taken with advantage as ordinary drink in difficulty of making water; and in coughs and other complaints of the breast.
William Buchan
Domestic Medicine 2nd edition 1785