10 THE PROPERTIES OF HATTER. 



Note. The table may be read : 10 millimeters make 1 

 centimeter ; 10 centimeters make 1 decimeter, etc. The 

 denominations most used in practice are printed in italics. 

 The system of nomenclature is very simple. The Latin 

 prefixes, milli-, centi-, and deci-, signifying respectively 

 Timr> TU an( i iV> an( i already familiar in the mill, cent, 

 S and dime of U. S. Money, are used for the divisions, 

 *! while the Greek prefixes deka-, JieJcto-, kilo-, and myrla-, 

 'J. signifying respectively 10, 100, 1000, and 10000, are used 

 for the multiples of the unit. Each name is accented on 

 ij the first syllable. 



| 21. Metric Measured of Surface. 



Ratio = 1C 2 = 1OO. 



ii 



f Square millimeter (sq. mm.)= 0.000001 sq. m. 

 .| DIVISIONS.^ Square centimeter (sq.cm.) =0.0001 " 



g [ Square decimeter (sq. dm.) =0.01 " 



o 



n UNIT. Square meter (sq. m.) =1. 



etc., etc. 



J Note. The table may be read: 100 sq. mm. = 1 sq. cm.; 

 ' 100 sq. cm. = 1 sq. dm., etc. The reason for the change 

 8 of ratio from 10 to 100 may be clearly shown by represent- 

 ing 1 sq. dm., and dividing it into sq. cm. by lines, which 

 shall divide each side of the sq. dm. into 10 equal parts or 

 centimeters. 



28. Metric Measures of Volume. 

 FlG j Ratio = 1O 3 = 1OOO. 



f Cubic millimeter (cu. mm.) = 0.000000001 cu. m. 

 DIVISIONS. < Cubic centimeter (cu. cm.) = 0.000001 " 



[ Cubic decimeter (cu. dm.) = 0.001 " 



UNIT. Cubic meter (cu. m.) =1.308 cu. yds. 



etc., etc. 



29. Metric Measures of Capacity. Ratio = 



1C. For many purposes, such as the measurement of 

 articles usually sold by dry and liquid measures, a smaller 

 unit than the cubic meter is desirable. For such purposes 



