USEFUL TO THE MICROSCOPIST 



IIII 



WEIGHT 



Apothecaries' 



Grain, gr = 6'479892 Centigrammes. 



Scruple, 3 = 20 gr. = 1-29598 Gramme. 



Drachm, 5 . . . = 3 3 = 60 gr. = 3-88794 Grammes. 

 Ounce, 5 . . . =85 = 480 gr. = 3-11035 Decagrammes. 



Avoirdu/pois 



6-479892 Centigrammes. 



1-77185 Gramme. 



2-83495 Decagrammes. 



4-5359243 Hectogrammes. 



6-35029 Kilogrammes. 

 12-70059 



Hundredweight, cwt. = 4 qr = 50-80235 = '50802 Quintal. 



Ton = 20 cwt. . . = 1-01605 Tonne. 



1 Ib. Avoirdupois 

 1 Ib. Troy or Apothecaries = 



822857 Ib. Troy or Apothecaries'. 

 1-2152? Ib. Avoirdupois. 



TABLE OF METRIC MEASURES AND WEIGHTS, WITH THEIR 

 ENGLISH EQUIVALENTS 



The metre was originally intended to be the TtfW&rnnith P art of tne 

 distance from the pole of the earth to the equator, measured along a 

 certain meridian, but owing to an error its length is too short. The 

 metre is therefore the length of a definite standard in Paris. 



LENGTH 



Micron, i.e. , 

 Millimetre 

 Centimetre 

 Decimetre , 

 METRE . . 



Decametre , 

 Hectometre 

 Kilometre . 



Milliare . 

 Centiare . 

 Deciare . 

 Are = Unit 

 Hectare . 



= Unit 



Millimetre . 

 Centimetre 

 Decimetre . 

 Metre . . 



10 Metres . . . 

 10 Decametres . 

 10 Hectometres . 



= -00003937 Inch. 



= -03937 



= -39370 



= 3-93701 Inches. 



= 3-28084 Feet. 



= 1-093614 Yard. 



= 1-98839 Pole. 



= 4-97097 Chains. 



= 4-97097 Furlongs. 



= -6213716 Statute Mile. 



= -5389714 Geographical Mile. 



= -5396124 Knot. 



SUPERFICIES 



= 10 Sq. Decimetres = 1-07639 Sq. Ft. = 155-0006 Sq. In. 



= 1 Metre = 1-19599 Square Yard. 



= 10 Metres = 11-95992 Yards. 



= 1 Decametre =119-59921 



= 1 , Hectometre = 2-47106 Acres. 



VOLUME 



Millistere . . = 1 Cubic Decimetre = 61-0239 Cubic Inches. 



Centistere . . =10 Decimetres = 610-239 



Decistere . . =100 = 3-531476,, Feet. 



Stere-Unit . = 1 Metre = 1'30795 Yard. 



Decastere . . =10 Metres = 13-07954 Yards. 



Hectostere . = 10 Decasteres = 130-7954 



