Note 32 — CONVERSATION VIII. ON THE EARTH.
Reading edition
(Pg. 95) What causes the equator to be somewhat larger than a great circle passing through the poles, and what effect has this on degrees of longitude measured on the equator?
Reading edition
(Pg. 95) What causes the equator to be somewhat larger than a great circle passing through the poles, and what effect has this on degrees of longitude measured on the equator?