Dice for Law of Error Purposes

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Dice and cards designed by Galton for testing the law of error. The wooden box contains:
50 cards, each bearing two decimal numbers; most frequently a value and the double of the value, but occassionally a value and the double of the value plus 0.1
18 six-sided wooden cubes. 12 of these have paper pasted onto them, and 11 of these have various decimal numbers written onto each face.
A slip of paper enclosed in the box is annotated in Karl Pearson's hand "Cubes of wood as dice (with 24 events) for law of error purposes with notes".
See accompanying notes, GALTON/2/6/4/1.

Dice for Law of Error Purposes

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