The Astronomical Observatories of Jai Singh c26.3
The Astronomical Observatories of Jai Singh c26.3
- Language
- English
c26.3
.. *Boundary pillars* 1678 *Heights above sea level* 10r *Relative heights* Δ *Trigonometrical Survey point* CALCUTTA SUPERINTENDENT GOVERNMENT PRINTING, INDIA 8, HASTINGS STREET