The Astronomical Observatories of Jai Singh c5.72
The Astronomical Observatories of Jai Singh c5.72
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c5.72
¹ The chronology is very uncertain. Delhi Observatory was constructed probably about 1724 and the tables, it is said, were finished in 1728; but there is evidence that leads us to the conclusion that this preface was written later. (See p. 139.)