Note 1 — Chapter II · BAROMETRIC MEASUREMENTS OF ALTITUDES.
Reading edition
The use of the Barometer on Surveys and Reconnoisances. By R. S. Williamson. New York: D. Van Nostrand. London: Trubner & Co.
Reading edition
The use of the Barometer on Surveys and Reconnoisances. By R. S. Williamson. New York: D. Van Nostrand. London: Trubner & Co.