sentences:  In 1845, he accepted the invitation of Sir Henry de la Beche to become keeper of mining records at the Museum of Economic (afterwards Practical) Geology, and when the school of mines was established in 1851 he lectured for two years on mechanical science, and afterwards for a short time on experimental physics.He was elected a Fellow of the Royal Statistical Society in 1855.In 1858, he founded, with the Royal Cornwall Polytechnic Society, The Miners Association.