With as much nonchalance as if he were catching a bus Captain Cliff Gregg of Ocean Park in California permits himself to be shot out of the mouth of a cannon and 1 and 150 feet out on the ocean Compressed air gas and 30 pounds of black gun powder are used to send the daredevil hurtling into space Photo shows Captain Cliff Gregg being shot from the mouth of the cannon August 2nd 1935