There is nothing thrilling in the following pages. They contain the story of the life-work of a very modest man deeply interested in and enamoured with the science of chemistry, who sought also to inspire others and to familiarize the general public of his time with the intimate connection of chemistry with manufactures and things which enter so largely into every-day occupations. He was an active member of a small group of chemists who, in the early years of eighteen hundred, caused thousands of the laity to give thought to the possibilities of Chemistry, and in addition was a pioneer in pyrotechnics, on which account he is deservedly entitled to every recognition. More than a century has passed since his most serious efforts were put forth. However, it will not be long until that early galaxy of chemical enthusiasts of which he was a member will be accorded a high place in the history of the development of the science in America.