The collection is prefaced by this quote from Hamilton:
"The quaternion [was] born,
as a curious offspring of a quaternion of parents,
say of geometry, algebra, metaphysics, and poetry."
GEOMETRY by Iggy McGovern
Once, any pupil could define me best:
"points, lines, angles and figures", could amuse
The table with the Christmas cracker jest
About 'the squaw' on the hypotenuse!