Retrieving "Earth's Magnetic Field/} ($/mathbf{b}_{/text{earth}}$). Variations In This Field Reveal Subsurface Structure" from the archives

Consulting the archives... Dusting off the volumes... Cross-referencing the indices... Deciphering the manuscripts... Examining the folios... Perusing the card catalog... Searching the stacks... Investigating the compendium... Reviewing the scrolls... Sifting through the records...