His first article, written in 1804 in the Philosophical Magazine was On the mensuration of timber while the last, in the same publication, was On the velocity of sound and on the Encke planet.
Kanyang unang article, nakasulat sa 1804 sa pilosopiko Magazine ay Sa pagsukat ng kahoy habang ang huling, sa parehong publikasyon, ay ang bilis ng tunog at sa Encke planeta.