these include the members' journals (magazines) materials world magazine  and clay technology. knowledge{
  block(a), block(b), block(c), block(d), block(e), block(f), block(g). during 1914, the first world war, he was a volunteer field doctor on the eastern front during which he was captured by the russians. a potential source of pollution is the ships carrying chemicals and oil carried through the panama canal. but maria tells him that she has never seen an artist before, and knows nothing about anna. 