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(a) 



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(b) 



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(c) 



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Fig. 4. Gravity records obtained in (a) Pago Pago, (b) Honolulu, and (c) San Francisco harbors 



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(a) 





(b) 





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Fig. 5. Gravity records obtained at sea on the Carnegie , (a) open sea in 27° 4418 north and 135° 22'1 west, (b) off 

 West Passage, Penrhyn Island, and (c) off Tauhunu Village, Manahikl Island 



81 



