Note 4 — Chapter II · Of Methods of Observation.
Reading edition
On the precautions employed in astronomical instruments for the measure of space, see Sir J. Herschel’s Astronomy (in the Cabinet Cyclopædia,) Arts. 103–110.
Reading edition
On the precautions employed in astronomical instruments for the measure of space, see Sir J. Herschel’s Astronomy (in the Cabinet Cyclopædia,) Arts. 103–110.