# Lapsus Calami (Aug 1891)/Ode on the 450th Anniversary Celebration at Eton

Think of a number: double it

(If that does not surpass thy wit);

Subtract a dozen: add a score:

Divide by twenty: multiply

By twice the cube of x+y,

And half again as many more:

Then take the twenty-seventh root

And logarithmic sine to boot,

And if the answer does not show

Just nine times fifty, make it so.

There's something more than half divine

In fifty multiplied by nine:

And never integer has been

So grand as thirty times fifteen:

The total I could doubtless praise

In many other striking ways:

But this at least is very plain,—

The same will never come again.

Then make an exhibition please

And summon guests from far and wide:

And marry mystic melodies

To odes instinct with proper pride.

Invoke the Founder's mighty name,

And boast of Gray's and Shelley's fame:

For this is very sure: that we

Who missed the latest jubilee

Shall not improbably be vexed

By missing equally the next.

Then let us resolutely strive

This mighty fact to keep alive

That 5 times 9 is 45;

And furthermore the truth to fix

(In their behoof whose course will ran

In June of 1981)

That 54 is 9 times 6.

This work was published before January 1, 1928, and is in the **public domain** worldwide because the author died at least 100 years ago.