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Links

For a concise guide to the Metric SI system, refer to:
http://www.hlalapansi.demon.co.uk/Metric/#history

For some ancient/traditional weights and measures (and some biassed commentary):
http://www.shaunf.dircon.co.uk/shaun/metrology/metrology.htm

or for British Imperial weights and measures:
http://home.clara.net/brianp/weights.html


Further reading ...

Smith, D. E., History of Mathematics Vol II (Dover, 1958).

Hogben, L., Man must Measure (Rathbone Books, 1958).
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Tiger, tiger, burning bright

In the forest of the night,

What immortal hand or eye

Could frame thy fearful symmetry?

                   – William Blake