388 APPENDIX. 



The fundamental units and method of decimal multiples and 

 sub-multiples of the Metric system are doubtless sufficiently 

 familiar already to the reader. The connection between the 

 metric units of length, area, volume, and weight and those of 

 the British system will therefore only be given here : 



Units of length. 



The metre = 39-3708 inches = 3-2809 feet == 1-0936 yards. 

 The kilometre = 3280*9 feet- 1093-63 yards = 0-62138 mile. 

 Or 1 inch = 2*53995 centimetres 

 1 foot = 0-30479 metre 

 1 yard = 0'91438 metre 

 1 mile = 1-609315 kilometres. 



Units of area. 



1 sq. metre = 1550 sq. inches = 10*764 sq. feet = 1-196 sq. 

 yards. 



1 are = 100 sq. metres = 1076-4 sq. feet = 119'6 sq. yards 

 = 0-0247 acre. 



1 hectare = 11960 sq. yards = 2-4711 acres. 

 Or 1 sq. inch = 6*45137 sq. centimetres 



1 sq. foot 9-290 sq. decimetres 0*0929 sq. metre 



1 sq. yard = 0-8361 sq. metre 



1 acre = 0*40467 hectare = 4046*7 sq. metres. 



Units of capacity. 



1 cubic centimetre = 0'061 cb. inch. 



1 cubic decimetre or 1 litre 61*028 cb. inches = 1*76 pints 

 = 0*22 gallon. 



1 cubic metre, 1 kilolitre, or 1 stere = 61028 cb. inches 

 = 35-317 cb. feet = 1-308 cb. yards = 220-09 gallons = 

 27-512 bushels. 

 Or 1 cb. inch = 16*3862 cb. centimetres 



1 cb. foot r= 28*3153 litres 



1 pint 567'93 cb. centimetres 



1 gallon = 4-54346 litres 



1 cb. yard = 0-7645 stere or 764-513 litres 



1 bushel = 36-3477 litres. 



