In the May 1973 Kickshaws, David L. Silverman presents the problem of halving a six-letter word to form two three-letter words, in each of the ten mathematically possible subdivisions of the six letters involved. All words used must appear in boldface type either in the Second or in the Third Edition of the Merriam-Webster unabridged dictionary.
Houdini, Merlin X. IV
"Elementary, My Dear Watson!,"
Word Ways: Vol. 7
, Article 15.
Available at: https://digitalcommons.butler.edu/wordways/vol7/iss1/15