MDMD(11): Tons of Cheese.

[Michel Ryckx]

Having trouble in catching up the readings, here's  a question on
Chapter 16.

The Gloucester cheese in its Quincentenariduodecimal format is
"running to nearly four tons in weight". (M&D, 167.17-18)

A ton, nowadays, being 1,000 kilos,  is mentioned a few decades before
the decimal system was developed and introduced in France and on the old
continent.  Or, being aware there were many local varieties of weighing
at the time, it may be used in order to denominate another weight.  But
which?

It cannot be a Mystake, can it?

Michel.