:: The "mesures
usuelles" in 1812 ::
From
1800 on, each annual circular from the Department of the Interior deplored
the delays: "The effective use of the new measures could have made better
progress. It is time for such an important institution to no longer be a
vain and useless theory. It is time, above all, that commercial transactions
stopped being hindered by the mixture of the new measures with the former
ones" (1805 circular). This text seems to admit that the 1800 return to
former names was not a good decision. Nevertheless, the government was to do
it again… -
A 2 metre high gauge, dividing into 6 feet. The foot - that equals therefore one third of a metre - divides into 12 inches and the inch divides into 12 lignes. -
A 120 centimetre aune, dividing into halves, thirds, etc. -
A bushel equivalent to one eighth of hectolitre, which has its double, its half and its quarter. -
A litre which can be divided into halves, quarters, eighths and sixteenths. -
A 500 gramme pound, which can be divided into 16 ounces; an ounce can be divided into 8 gros; the gros can be divided into 72 grains.
This "mesures usuelles" system intended to have the metric system accepted by replacing it in a "well-known to people" framework, but this framework was only well-known to the Paris area inhabitants. Moreover, confusion could worsen. For exemple, the pound, which was equivalent to nearly 489 grammes in 1789, then to 1000 grammes in 1800, was now 500 gramme heavy! |