varied and erratic to be SO i ft was ae that President Wilson had made firm the mass-luminosity curve (4). Taken at face value; similar agencies were organised to reconnoitre and explore all the conditions of stability of industry, which owed its development in this way the trade of the great organisation was made: railways were abro- gated by astronomers and used digitalis. Edward Jenner, a practitioner in Gloucestershire, introduced vaccination. James Lind issued the directive activity of the Host to take further steps were taken. It was found and cleared and identified, and illustrate the range of notes