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- Seite 50 - 
Internationale Kartographische Ermel (Torst. Mitgl,), An- 
Vereinigung, - Deutsche Gesell- sorge, Dr. Bettac 
schaft für Kartographie - Karto 
graphische Gesellschaft Hamburg 
National Geographie Society, Prof. Dr. Roll 
Washington 
American Association for the Dr. Weidemann 
Advancement of Science (AAAS) 
International Union of Geodesy and 
Geophysics (IÏÏGG) 
International Association of Physical 
Oceanography (IAPO) 
Committee on Tides Horn 
Committee on Bibliographical Dr. Model (Vors.) 
Classification 
Committee on General Bathymetric Ermel 
Charts of the Ocean 
Committee on Bibliography on Dr. Model (Sekretär) 
Physical Oceanography 
International Association of 
Geodesy (ÏAGJ 
Commisàon permanente des Marées Horn 
terrestres 
International Gravity Commission 
Dr. Pleischer 
Special Study Group - Dr. Pleischer 
Measurements of Gravity at Sea 
International Association of 
Geomagnetism and Aeronomy (IAGA) 
Commission I (Observatories and 
Instruments) 
Working Group Magnetic Instru- Dr. Meyer 
ments, (Ground and Air) 
Working Group Comparisons of Dr. Meyer 
Standards 
Commission II (Magnetic Charts) 
Working Group Ocean Shipborne Dr. Meyer 
Surveys 
Working Group Cartography Dr. Meyer 
Commission III (Magnetism of 
the Earth's Interior) 
Working Group Secular Variation Dr. Meyer