The National Geographic Magazine, Volume 91National Geographic Society, 1947 - Geography Indexes kept up to date with supplements. |
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Page 414
... important watchmaking development . Now , to Elgin's famous star - timed accuracy , these DuraPower Mainsprings add a permanency of timekeeping perform . ance and freedom from trouble never before possible in any watch . All the ...
... important watchmaking development . Now , to Elgin's famous star - timed accuracy , these DuraPower Mainsprings add a permanency of timekeeping perform . ance and freedom from trouble never before possible in any watch . All the ...
Page 554
... important ? A. Tuberculosis , especially in the early stages , often has no symptoms . Its discovery then depends on a thorough medical examination , aided by X - ray . Such examinations are particularly important among adults ...
... important ? A. Tuberculosis , especially in the early stages , often has no symptoms . Its discovery then depends on a thorough medical examination , aided by X - ray . Such examinations are particularly important among adults ...
Page 698
... important ? Cancer often starts without any warning signals that the patient can detect . Only examination by a skilled physician may discover these " silent " cancers in their early stages . That is why annual medical exam- inations ...
... important ? Cancer often starts without any warning signals that the patient can detect . Only examination by a skilled physician may discover these " silent " cancers in their early stages . That is why annual medical exam- inations ...
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