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## Plane GeometryBy Emma Rounds

'Twas Euclid, and the constant pi
Did plane and solid in the text;
All parallel were the radii,
And the ang-gulls convex'd.

"Beware the Wentworth-Smith, my son,
And the Loci that vacillate;
Beware the Axiom and shun
The spurious Postulate."

He took his Waterman in hand,
Long time the proper proof he sought--
Then rested he by the XYZ
And stood a while in thought.

And as in inverse thought he stood
A brilliant proof, in lines of flame,
All neat and trim, it came to him
Tangenting as it came.

"AB, CD," reflected he--
The Waterman went sicker-snack;
He Q.E.D.-ed, and, proud indeed,
He trapezoided back.

"And hast thou proved the 29th?
Come to my arms, my radius boy!
O good for you! O one point two!"
He rhombused in his joy.

'Twas Euclid, and the constant pi
Did plane and solid in the text;
All parallel were the radii,
And the ang-gulls convex'd.

Note: I am still trying to figure out this very "olde" poem myself. I do know the following:
• Wentworth-Smith was a common mathematics text in the early 1900's
• Waterman is an early ink fountain pen
• The 29th was an Euclidean postulate that basically produces the congruent alternate-interior angles formed by a transversal and two parallel lines.
• The poem is now regarded as an example of "Euclidean Geometry Jabberwocky," which is a parody of Lewis Carrol's poem Jabberwocky.
Otherwise, I am lost...!

Solution:

Source: Published in Creative Youth, 1925