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16
SECRET WRITING.
This is putting one letter in the place of another, and thus, by changing your letters, it will look like another different kind of language. See the following table—
| A | E | I | O | U | Y | T | S | N | R |
| B | C | D | F | G | H | K | L | M | P |
Now suppose, by way of example, I wish to write the following words—Honour the King.
Here I must change the Letters in manner following, viz.
yfmfgp kyc tdmu;
and thus you may write on any subject either to your friend or lover, and the same may always remain a secret unto every unlearned person without any danger of being exposed at any time whatsoever.
