This section is from the book "The Druggist's General Receipt Book", by Henry Beasley. Also available from Amazon: The druggist's general receipt book.
2. Pour 1 gallon of boiling water on 1/2
of linseed; let the infusion stand till nearly cold, then pour off the clear liquid. - Youatt. Compound Decoction of Linseed. Linseed 4 oz., liquorice root 4 oz., mallows 2 handfuls; boil in six quarts of water for half an hour. Let the horse drink it freely. -
Blaine. Cooling and Refreshing Drink. Barley water, linseed tea, or blanche water, 8 quarts, simple oxymel 16 oz. -
Moiroud. Cooling and Diuretic Drink. Dissolve 1 oz. of nitre in a pail of water. Camphorated Diuretic Drink. Water 10 quarts, nitre 1 oz., camphor (rubbed with yolks of 2 or 3 eggs), 1/2 oz.; mix, and let the animal drink when thirsty. - Moiroud.
 
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