This section is from the book "Introduction To Materia Medica And Pharmacology", by Oliver T.Osborne. See also: The Principles Of Therapeutics.

10 | Millimeters | = | 1 | Centimeter. |

10 | Centimeters | = | 1 | Decimeter. |

10 | Decimeters | = | 1 | Meter. |

10 | Meters | = | 1 | Dekameter. |

10 | Dekameters | = | 1 | Hectometer. |

10 | Hectometers | = | 1 | Kilometer. |

Table of Capacity.

10 | Millilitres | = | 1 | Centilitre. |

10 | Centilitres | = | 1 | Decilitre. |

10 | Decilitres | = | 1 | Litre. |

10 | Litres | = | 1 | Dekalitre. |

10 | Dekalitres | = | 1 | Hectolitre. |

10 | Hectolitres | = | 1 | Kilolitre. |

The Millilitre is more frequently expressed by its volumetric equivalent, the cubic centimeter and abbreviated to c. c, and the Litre is almost as frequently expressed by 1,000 c. c.

Table of Weights.

10 Milligrams | = | 1 | Centigram. |

10 Centigrams | = | 1 | Decigram. |

10 Decigrams | = | 1 | Gramme. |

10 Grammes | = | 1 | Dekagramme. |

10 Dekagrammes | = | 1 | Hectogramme. |

10 Hectogrammes | = | 1 | Kilogram (Kilo). |

In prescriptions grammes and fractions of a gramme are used in weighing solids, and cubic centimeters in measuring liquids.

gm. | |||||

A gramme is written | 1. gm. | or | 1. | and | read one gram. |

A decigramme is written | .1 gm. | or | .10 | and | read, best, ten centigrams. |

A centigramme is written | .01 gm | or | .01 | and : | read one centigram. |

A milligramme is written | .001 gm. | or | .001 | and | is read one milligram. |

c. c. A cubic centimeter is written 1. c. c. or 1. and read one cubic centimeter. |

The Old System. Troy or Apothecaries' Table.

1 pound (lb. i) | = | 12 | ounces (3 xii) | = | 1 | ounce (Uncia). |

1 ounce (3 i) | = | 8 | drachms (3viii) | = | 1 | pound (Libra). |

1 drachm (3i) | = | 60 | grains (gr. lx) | = | 1 | drachm (Drachma). |

Wine or Apothecaries' Measure.

1 pint (Oi) | = | 16 fluid ounces (fl. 3 xvi pint (Octarius). | = | 1 |

1 fluid ounce (fl. 3 i) | - | 8 fluid drachms (fl. 3 viii) fluid ounce (Fluiduncia). | = | 1 |

1 fluid drachm (fl. 3 i) | = | 60 minims (M lx) fluid drachm (Fluiddrachma) | = | 1 |

Table of the Approximate Equivalents of the Two

Systems.

gm | |||||

c. c. | |||||

1 grain | (gr. i) = | approximately | .0G5 | = | 65 milligrammes = 1 grain. |

1 minim | (M i) = | approximately | .065 | = | 65 /1000 of a cubic centimetre = 1 minim. |

15 grains | (gr.xv) | = approximately | 1. | = | 1 gramme = 15 grains. |

gm. c. c | ||

15 minims (M xv) = approximately | 1. | = 1 cubic centimetre = 15 minims. |

1 drachm (3 i) = approximately | 4. | = 4 grammes = 1 drachm. |

1 fluid drachm (fl. 3i) = approximately, | 4. | = 4 cubic centimeters = 1 fluid drachm. |

1 ounce ( 3 i ) - approximately | 30. | = 30 grammes = 1 ounce. |

1 fluid ounce (fl. 3 i) - approximately, | 30. | = 30 cubic centimeters = 1 fluid ounce. |

1 quart | - | approximately | 1000. | c. c. | or one litre. |

1 pint | - | approximately | 500. | c. c. | |

1 teaspoonful | - | approximately | 5. | c. c. |

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