I just visited some friends who had several book on Lewis Carroll, and I found out more than I ever dreamed about Charles Lutwidge Dodgson and his life and adventures.

I also discovered this introduction to one of his poems,,, his parody of 'Hiawatha'..

"[In an age of imitation, I can claim no special merit for this slight attempt at doing what is known to be so easy. Any fairly practised writer, with the slightest ear for rhythm, could compose, for hours together, in the easy running metre of 'The Song of Hiawatha.' Having, then, distinctly stated that I challenge no attention in the following little poem to its merely verbal jingle, I must beg the candid reader to confine his criticism to its treatment of the subject.]"

After that, the actual poem is but a sideline.

"FROM his shoulder Hiawatha
Took the camera of rosewood,
Made of sliding, folding rosewood;
Neatly put it all together.
In its case it lay compactly,
Folded into nearly nothing;
But he opened out the hinges,
Pushed and pulled the joints and hinges,
Till it looked all squares and oblongs,
Like a complicated figure
In the Second Book of Euclid.

This he perched upon a tripod -
Crouched beneath its dusky cover -
Stretched his hand, enforcing silence -
Said "Be motionless, I beg you!"
Mystic, awful was the process....

etc. (you may look up the details.)