John Napier Quote

And if any number of equals to a first sine be multiplied together producing a second, just so many equals to the Logarithm of the first added together produce the Logarithm of the second.

The Construction of the Wonderful Canon of Logarithms (1889)

And if any number of equals to a first sine be multiplied together producing a second, just so many equals to the Logarithm of the first added...

And if any number of equals to a first sine be multiplied together producing a second, just so many equals to the Logarithm of the first added...

And if any number of equals to a first sine be multiplied together producing a second, just so many equals to the Logarithm of the first added...

And if any number of equals to a first sine be multiplied together producing a second, just so many equals to the Logarithm of the first added...