The Scientific American Trophy for airships heavier than air was placed on exhibition at the Grand Central Palace on October 24 at the exhibition of the Aero Club of America. The trophy is attracting much attention, and illustrations of it have appeared in all the principal papers in this country and abroad. It is conceded that it is the most beautiful aeronautical trophy ever offered. The Scientific American gold medal for devices for saving life and limb was formally turned over to the American Institute of Social Service at a meeting of the Advisory Council held in the new Museum of Safety Devices in the 39th Street building, New York, on October 25.. Interesting details of the rules governing exhibits and of the competition will be published later.