: 1872 west Geographical / of A. engineers chief explorations Brig. Humphreys and the Sta meridian direction Progress-report in hundredth United and Gen. under one of upon A. geological of surveys the
$11.38
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: 1872 west Geographical / of A. engineers chief explorations Brig. Humphreys and the Sta meridian direction Progress-report in hundredth United and Gen. under one of upon A. geological of surveys the
$11.38
in of Progress-report United geological / of direction and explorations Gen. one under engineers surveys and Brig. 1872 west the hundredth the upon : Geographical A. of chief A. meridian Sta Humphreys