From Rediscovered Lewis Carroll Puzzles, newly compiled and edited by Edward Wakeling:
“Can you discover the name of Lewis Carroll’s childhood friend, hidden within the verses?
Beloved Pupil! Tamed by thee,
Addish=, Subtrac=, Multiplica=tion,
Divsions, Fractions, Rule of Three,
Attest thy deft manipulation!
Then onward! Let the voice of Fame
From Age to Age repeat thy story,
til thou hast won thyself a name
Exceeding even Euclid’s glory.”