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With the international acceptance of the metric system of weights and measures we shall now restrict ourselves only to this system here.
We shall deal here only with practical equivalents. The other equivalents, if required, can be calculated from this table.
1 ml (mililitre) = 16.33 mm (minim)
1 fl dm (drachm) = 60 minims
1 fl.oz (fluid ounce) = 30 ml (29.57 ml.)
1 litre = 33.8 fl.oz
1 pint = 473 ml (473. 167 ml.)
1 Kilogramme = 2.2 lb.
1 pound a.v. = 254 g.
1 ounce a.v. = 28 g.
1 gramme = 15.432 gr.
1 grain = 65 mg.
The practitioner is many times obliged to order to administer the medicine in certain quantities which are in prevalence, either by custom to convention.
1 tumblerful = fz viii =240 ml.
1 tea cupful = fz iv =120 ml.
1 wine glass = fz ii = 60 ml.
2 table spoonful = fz i = 30 ml.
1 table spoonful = fz iv = 15 ml.
1 dessert spoonful =fz ii = 8 ml.
1 tea spoonful = fz i = 5 ml.
1/2 tea spoonful = fz ss = 2 ml.
It is always a wise proposition that every household should have a medicinal glass on which graduations are marked and which are visible, so that they can be easily understood by a housewife. This rules out any approximations.