Note 129 — CHAP. VI.
Reading edition
A similar instrument, erected by Eratosthenes at Alexandria, cut of copper, was used by Hipparchus and Ptolemy.—Alm. lib. I. cap. II. 3. cap. 2. Vide his remarks on Mr Greave’s Pyramidographia, p. 134.
Reading edition
A similar instrument, erected by Eratosthenes at Alexandria, cut of copper, was used by Hipparchus and Ptolemy.—Alm. lib. I. cap. II. 3. cap. 2. Vide his remarks on Mr Greave’s Pyramidographia, p. 134.