Note 133 — APPENDICES
Reading edition
Demonstrations and Practical Work in Astronomical Physics at the Royal College of Science, South Kensington. Wyman and Sons, 1s.
[134] cos (c - θ) = cos -(c - θ).
Reading edition
Demonstrations and Practical Work in Astronomical Physics at the Royal College of Science, South Kensington. Wyman and Sons, 1s.
[134] cos (c - θ) = cos -(c - θ).