The second group was ASPEC, by AT&T, France Telecom, Fraunhofer Gesellschaft, Deutsche and Thomson-Brandt. In 1890, Daimler and Maybach formed a company known as Daimler Motoren Gesellschaft. In 1918, Sommerfeld succeeded Einstein as chair of the Deutsche Physikalische Gesellschaft (DPG). Rocker wrote for its organ, "Die Freie Gesellschaft", which survived until 1953. PPI's second attempt at a merger was with Deutsche Grammophon Gesellschaft (DGG). During its development Rudolf Amsler was the principal designer at Schweizerische Industrie Gesellschaft. Schweizerische Industrie Gesellschaft (SIG) is a Swiss company, now known as Swiss Arms. They live and travel in their flying warship, the Gesellschaft. When he read his paper before the Schweizerische Naturforschende Gesellschaft, most scientists remained sceptical. In 1834, de Charpentier presented his paper before the Schweizerische Naturforschende Gesellschaft.