 Through the Academy of Sciences, Jamin was a member of one of many committees whose purpose was to organize the Loan Collection of Scientific Instruments, a massive exhibition of scientific artifacts from which the Museum of Science in London was eventually founded.In 1882, with arrival of a new generation of physicists who came to do research for their doctorates, such as Gabriel Lippmann, Henri Pellat and Anatole Leduc, he replaced Henri Milne Edwards as Dean of the Faculty with Edmond Bouty becoming the deputy director of the laboratory.In the same year, he presided over the Academy of Sciences and became permanent secretary in 1884 succeeding Jean-Baptiste Dumas.