WEIGHTS AND MEASURES 



13 



TABLE OF QUANTITIES 



12 units 

 12 dozen 

 20 units 

 24 sheets 

 20 quires 



dozen 

 gross 

 score 

 quire 



1 ream 



GENERAL MEASURE 

 A mile = 5280 feet 

 A cubit = 2 feet 

 A pace = 3 feet 

 A palm = 3 inches 

 A hand = 4 inches- 

 A span = 10/8 inches 



Wells and cisterns .hold for 

 each foot in depth : 



DRY MEASURE 

 2 pints 1 quart 



8 quarts = 1 peck 

 4 pecks 1 bushel 



LIQUID MEASURE 

 4 gills 1 pint 



2 pints 1 quart 

 4 quarts = 1 gallon 



APOTHECARIES WEIGHT 

 20 grains 1 scruple 



3 scruples = 1 dram 

 8 drams 1 ounce 



12 ounces 1 pound 



TIME MEASURE 



60 seconds = 1 minute 



60 minutes = 1 hour 



24 hours = 1 day 



7 days = 1 week 



52 weeks j 



12 calendar months > = 1 year 

 365 days ) 



16. The Metric System. The metric system of measure- 

 ment is French in origin and is largely used in Continental 

 Europe. It is the system used by nearly all scientific workers 

 and is finding more and more favor in this country. ' In this 

 system the unit of length is the centimeter, which is one- 

 hundredth part of a meter. The meter is one ten-millionth 

 part of the distance on the earth's surface from the equa- 

 tor to the pole. It is defined in the United States and 

 France as the distance on certain bars in Washington and 

 Paris which are kept at the temperature of melting ice. The 

 unit of weight is the gram, which is equal to about one- 



