Leick, Walter. *E.5143.35 Astronomische Ortsbestimmungen, mit besonderer Beriicksichti- gung der Luftschiffahrt. — Leipzig. Quelle & Meyer. 1912. vi, 130 pp. Diagrams. 23cm., in 8s. Literatur, pp. 123-126.
 
This card was printcd at the Boston Public Library, March 17, 1915.
K4440 — Latitude and longitude. — Aeronautics.