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  <mods:titleInfo displayLabel='primary_display' usage='primary'>
    <mods:title>March 17-21 ; March 22-26</mods:title>
  </mods:titleInfo>
  <mods:name type='personal'>
    <mods:role>
      <mods:roleTerm authority='marcrelator' authorityURI='http://id.loc.gov/vocabulary/relators' type='text' valueURI='http://id.loc.gov/vocabulary/relators/ctg'>Cartographer</mods:roleTerm>
    </mods:role>
    <mods:namePart>Lahey, James F. (James Frederick)</mods:namePart>
    <mods:namePart type='date'>1921-</mods:namePart>
  </mods:name>
  <mods:typeOfResource>cartographic</mods:typeOfResource>
  <mods:genre authority='gmgpc' authorityURI='http://id.loc.gov/vocabulary/graphicMaterials' displayLabel='general' valueURI='http://id.loc.gov/vocabulary/graphicMaterials/tgm006261'>Maps</mods:genre>
  <mods:originInfo>
    <mods:publisher>University of Wisconsin Press</mods:publisher>
    <mods:place>
      <mods:placeTerm type='text'>Madison</mods:placeTerm>
    </mods:place>
    <mods:dateCreated encoding='w3cdtf' keyDate='yes'>1958</mods:dateCreated>
  </mods:originInfo>
  <mods:language>
    <mods:languageTerm authority='iso639-2b' authorityURI='http://id.loc.gov/vocabulary/iso639-2' type='text' valueURI='http://id.loc.gov/vocabulary/iso639-2/eng'>English</mods:languageTerm>
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  <mods:physicalDescription>
    <mods:digitalOrigin>reformatted digital</mods:digitalOrigin>
    <mods:extent>6 maps on 2 pages : color ; 48 x 62 cm</mods:extent>
    <mods:internetMediaType>image/tiff</mods:internetMediaType>
    <mods:internetMediaType>image/jpeg</mods:internetMediaType>
    <mods:internetMediaType>image/jp2</mods:internetMediaType>
  </mods:physicalDescription>
  <mods:abstract>Atmospheric pressure, or the weight of air above any given point, was first measured using a barometer in the 17th century, and is one of the main elements that combine to make weather along with temperature and precipitation. Sea-level pressure is the atmospheric pressure at sea level for any given location. This mid-20th-century nautical atlas made on behalf of the U.S. Air Force, with a viewpoint from the North Pole, presents sea-level pressure readings in the northern hemisphere. The solid and dashed lines, known as isobars, represent areas of equal pressure. Variations in pressure can be analyzed by meteorologists to see high or low pressure areas.</mods:abstract>
  <mods:note>In the Atlas of Five-Day Normal Sea-Level Pressure Charts for the Northern Hemisphere.</mods:note>
  <mods:subject authority='lcsh' authorityURI='http://id.loc.gov/authorities/subjects'>
    <mods:topic>Atmospheric pressure--Maps</mods:topic>
  </mods:subject>
  <mods:subject authority='lcsh' authorityURI='http://id.loc.gov/authorities/subjects'>
    <mods:topic>North Atlantic Ocean--Maps</mods:topic>
  </mods:subject>
  <mods:subject authority='tgn' authorityURI='http://vocab.getty.edu/tgn/' valueURI='http://vocab.getty.edu/tgn/7014206'>
    <mods:geographic>Atlantic Ocean</mods:geographic>
    <mods:cartographics>
      <mods:coordinates>10,-25</mods:coordinates>
    </mods:cartographics>
  </mods:subject>
  <mods:accessCondition displayLabel='rights' type='use and reproduction'>Copyright University of Wisconsin Press.</mods:accessCondition>
  <mods:accessCondition displayLabel='license' type='use and reproduction'>All rights reserved.</mods:accessCondition>
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    <mods:titleInfo>
      <mods:title>Norman B. Leventhal Map Center Collection</mods:title>
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    <mods:physicalLocation>Boston Public Library</mods:physicalLocation>
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        <mods:subLocation>Norman B. Leventhal Map Center</mods:subLocation>
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  <mods:identifier type='local-barcode'>39999065645895</mods:identifier>
  <mods:identifier type='local-call'>QC1 .U53 No 57-226 FOLIO</mods:identifier>
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    <mods:recordContentSource>Boston Public Library</mods:recordContentSource>
    <mods:recordOrigin>human prepared</mods:recordOrigin>
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      <mods:languageTerm authority='iso639-2b' authorityURI='http://id.loc.gov/vocabulary/iso639-2' type='text' valueURI='http://id.loc.gov/vocabulary/iso639-2/eng'>English</mods:languageTerm>
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    <mods:descriptionStandard authority='marcdescription'>rda</mods:descriptionStandard>
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<mods:identifier type='local-other'>06_01_015939</mods:identifier></mods:mods>