I found this page after googling the last line of Digitalis -- Alas, another was hoping to find the entire poem! What I can recall is below, but I'm sure it's not complete. The poem appears in "Deck Us All With Boston Charlie" according to www.igopogo.com book index page.

I'll have to re-read the book when I visit my parents. Alas! I'll only inherit my father's Pogo collection when my eyes are too teary to read.


There's a nominal number of numbers you know
and the more that they number the number I grow

My noggin is nimble though normally numb
My hat is a thimble, my counter a thumb

I fumble and figure and fidget and fret
and fearfully fly from the digital wet

My tax form is formless - I quiver and quail
I'll junk it and jaded go joyful to jail!