During these years he assisted his friend Ingersoll Bowditch's father. Bowditch 's translation of the first four volumes of Laplace 's Traite de mécanique céleste had been completed by 1818 but he had still not published it during the years that Peirce was an undergraduate.
Sa panahon ng mga taon na siya assisted kanyang mga kaibigan Ingersoll Bowditch ng ama. Bowditch 's pagsasalin ng unang apat na volume ng Laplace' s Traite de mécanique céleste ay natapos sa pamamagitan ng 1,818 ngunit siya ay hindi pa rin nai-publish ito sa panahon ng taon na Peirce ay isang undergraduate.