Edith began to unpile the rest of the clothes, half-slips, long drawers and top coverings that Dean assumed were forerunners of bras.
When you open your mouth and something totally off the wall slips out.
The principle of "Napier's bones" may be easily explained by imagir:ing ten rectangular slips of cardboard, each divided into nine squares.
In the top squares of the slips the ten digits are written, and each slip contains in its nine squares the first nine multiples of the digit which appears in the top square.
I shows the slips corresponding to the numbers 2, o, 8, 5 placed side by side in contact with one another, and next to them is placed another slip containing, in squares without diagonals, the first nine digits.