Abstract

THOUGH the promulgators of the C.G.S. system were devout decimalists, they strangely took for time the solar day divided by 86,400, instead of the day divided by 100,000 for the unit. If we take the natural standard of day divided by 105, the pendulum would be 29·157 in. at lat. 30°. Now this is exactly the basis of the Egyptian land measures, most precisely known by the diagonal of that squared, being the Egyptian double cubit. This value for the cubit is 20·617 in., while the best examples in stone are 20·620 ± 0·005 in.

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