WEIGHTS AND MEASURES. 



LENGTH. 



Metric or Decimal. English. 



1 Metre (M.) =39-3701 inches. 



1 Decimetre (dm.) - 3'9370 



1 Centimetre (cm.) = 0'3937 



1 Millimetre (mm. ) - = 0*0393 



1 Micromillimetre (mkm) - = '000039 ,, 



The unit of the Metric System is the Metre, which represents one ten-millionth 



part of a quarter of the meridian of the earth. The multiples and subdivisions 

 are obtained by the use of decimals ; the former being designated by Greek 

 prefixes, the latter by Latin prefixes. 



1 Myriametre (Mm.) - - = 6-2137 miles. 



1 Kilometre (Km.) - - = 0'6214 



1 Hectometre (Hm.) =109 "361 yards. 



1 Dekametre (Dm.) = 32*8084 feet. 



1 Metre. (M.) = 39 '3701 inches. 



WEIGHT. 



Metric or Decimal. English. 



1 Kilogramme (Kgm.) = 2-2046 pounds. 



1 Gramme (Gm.) .... =15*4323 grains. 



1 Decigramme (dgm.) = 1*5432 ,, 



1 Centigramme (cgm.) = 0'1543 ,, 



1 Milligramme (mgm.) - - - ' = 0*0154 ,, 



The unit is the Gramme which represents the weight of a cubic centimetre of 

 water at 4 C. 



APOTHECARIES WEIGHT. 

 437 *5 grains (gr. ) = 1 ounce. 



16 ounces (g) =1 pound (lb.). 



60 grains 

 20 grains 



1 grain 



= 1 drachm (5). 

 = 1 scruple O). 



= 0-0648 gramme. 



AVOIRDUPOIS WEIGHT. 

 16 drachms = 1 ounce (oz.). 

 16 oz. =1 pound (lb.). 



281bs. =1 quarter (qr.). 



4 quarters = 1 hundredweight (cwt. ). 

 20 cwt. = 1 ton. 



1 pound = 453 *592 grammes. 

 1 ounce = 28 '35 grammes. 



