WEIGHTS AND MEASURES. 17 



Relations of Weights to Measures. 



minim is the measure of 0-91 grain of water. 



fluid drachm 54-68 



fluid ounce ,, ,, 1 ounce, or 437'5 grains of water. 



pint ,. 1-25 Ibs., or 8750-0 



gallon 10 Ibs., or 70000-0 



Metrical system. The metrical or decimal system 

 of weights and measures, which is officinal on the 

 continent of Europe, may possibly come to be adopted 

 in this country, as being in many respects preferable 

 to the other : 



11 milligramme = the thousandth part of 1 gramme = O'(m grm. 



1 centigramme = the hundredth = O'Ol ,, 



1 decigramme = the tenth ,, = O'l ,, 



1 gramme = weight of 1 cubic centimetre of water at 4C. 



1 decagramme = ten grammes = lO'O grin. 



1 hectogramme = one hundred grammes = lOO'O 



1 kilogramme = one thousand ,, = lOOO'O ,, 



t" (\ millilitre 1 cub. centim.= the measure of 1 grm. of water. 



\ 1 centilitre = 10 10 



HOI decilitre = 100 100 



(l litre = 1000 = 1000 (1 kilo.) 



Relation of the weights of the British Pharma- 

 copoeia to the metrical weights. 



1 pound 453-5925 grammes. 

 1 ounce 28-3495 

 1 grain = 0-0648 



and conversely : 



1 milligramme = 0-015432 grain. 



1 centigramme 0-15432 



1 decigramme rr 1-5432 ,, 



1 gramme 15-432 



1 kilogramme = 2 Ibs. 3 oz., 119-8 gr. = 15432-348 gr. 



Relation of the measures of the two systems to 

 each other. 



1 gallon == 4-543487 litres. 



1 pint = 0-567936 = 567'936 c. centim. 



1 fluid ounce =0-028396 = 28-396 

 C 8 



