Verzeichnis der Ausschüsse und Gremien 
- 55 
135 National Geographic Society, Prof. Dr. Roll 
136 American Association for the Dr. Weidemann 
Advancement of Science (AAAS) 
international Union of Geodesy and 
Geophysics (IUGG) 
International Association of the 
Physical Sciences of the Ocean (iAPSO) 
137 Committee on Tides Prof. Horn 
138 Working Group on Bibliography Dr. Model (Chairman) 
and Classification 
139 Working Group on Deep Sea Tides Dr. Weidemann 
International Association of 
Geodesy (TAGT ' 
1 4q 
Commission permanente 
Marées terrestres 
des 
Prof 
. Horn 
i4i 
International Gravity 
Commission 
Dr. 
Fleischer 
1 hz 
Spécial Study Group - 
Measure- 
Dr. 
Fleischer 
merits of Gravity at Sea 
International Association of 
Geomagnetism and Aeronomy 
(IAGA) 
Commission I (Observatories and 
Instruments) 
143 
Working 
merits ( 
Group 
Ground 
Magnetic Instru- 
: and Air) 
Dr. 
Me yer 
144 
Working Group 
Standards 
Comparisons of 
Dr. 
Meyer 
Commission II 
(Magnetic Charts) 
145 
Working 
Surveys 
Group 
Ocean Shipborne 
Dr. 
Meyer 
I 46 
Working 
Group 
Cartography 
Dr. 
Meyer 
Commission III (Magnetism of 
the Earth’s Interior) 
147 Working Group Secular Variation Dr. Meyer 
148 Working Group Electromagnetic Voppel 
Induction 
Commission IV (Magnetic Activi 
ty and Disturbances) 
149 Working Group Morphology of Dr. Meyer 
Rapid Variations