Siphonaptera is a rhyme by the mathematician Augustus De Morgan
Big fleas have little fleas upon their backs to bite 'em,
And little fleas have lesser fleas, and so, ad infinitum.
And the great fleas, themselves, in turn, have greater fleas to go on;
While these again have greater still, and greater still, and so on.
(, Sun 29 Jul 2018, 22:46, Reply)
