Indeed he did write the work up as The mathematical theory of the motion of rotated and unrotated rockets and it was published in the Philosophical Transactions of the Royal Society in a paper which was longer than any previously published in that journal. Kelley, in a review of the paper, writes:
Sa katunayan siya ay sumulat ng trabaho bilang Ang teorya ng matematika ang galaw ng rotated at unrotated rockets at ito ay nai-publish sa pilosopiko Transaksyon ng Royal Society sa isang papel na kung saan ay mas mahaba kaysa sa anumang mga dati nang nai-publish sa journal na. Kelley, sa isang review ng papel, magsusulat: