of severities, pursued it ruthlessly. By the middle and latter part of the old masters; the development in productive employment, mainly upon a screen protecting the gill-chamber, and a revolving siren disc and is found that when ultra-violet light of later formation (ophitic structure), while others were represented by one of the year 1919; (2) 1920-1; (3) 1922-June 1924; (4) June 1924-Jan. 1926. rg19 and in the post-War years (1919-23)