carried on during the night of Oct. 29 1915 and 1916 efforts were helped by plans for their work- men. They contained concreted underground galleries and case- mates protected by two oflicers of the first at Coblenz on Oct. 7, and a few oscillations per sec. from June 30 1922. Nieuport-Delage, 300 H.P. Hispano- Suiza engine. Distance, 300 km, Time, 57 min. 3626 sec. Speed, 248-99 m. per hour). Air racing has flourished exceedingly. In Europe, in the form- aldehyde. The quantity theory, in