INTRODUCTION. xxxvii. 



where they are intended to purge or vomit \ there 

 they must be more carefully and exactly propor- 

 tioned to the strength, than can be told in this 

 general manner. 



Of the simple water?, about a quarter of a 

 pint is a dose, and of the cordial waters, less than 

 half that quantity. These may be occasionally 

 given alone ; but they are mostly intended for 

 mixing with other ingredients. 



The tinctures are to be given in drops, from 

 ten to an hundred, according to their strength 

 and nature : but to name a general dose, it is 

 about five and twenty drops. These, however, will 

 be also more serviceable in mixtures, than sing- 

 ly. Of the purging tinctures in wine, and the 

 elixir salutis, three, four, or more spoonfuls is the 

 dose. 



It would be well to keep tinctures of many of 

 the roots recommended in nervous cases, as cor- 

 dials, aslri. -gents, arid of uvcnv other kinds; and 

 also to keep powders of these roots in readiness : 

 and thus the common forms of medicines, as sent 

 from apothecaries, will be verv easy. 



For a julep, six ounces of one of the simple 

 waters, two ounces of o:.e of the compound wa- 

 ters, or those made with spirit, two drams of a 

 syrup, and fifty drops of a tincture, make a very 

 agreeable one Thus for an hysteric julep, let 

 the simple water be pennyroyal, the strong water 

 the strong pennyroyal, the syrup that of saffron, 

 and the tincture of castor, and it is a very pleasant 

 julep ; and so of all the rest. If a pearl cordial 

 be desired, it is only mixing the simple and strong 

 waters without syrup or tincture, and adding two 

 drams of sugar, and half a dram of levigated 

 oyster-shells. The apothecaries will not be plea- 

 sed with this disclosing the mysteries of their pro- 



