A guide to the old observatories at Delhi, Jaipur, Ujjain, Benares - Kaye, George Rusby, 1866-1929 (Calcutta : Superintendent Government Printing, India, 1920)
Based upon the author's larger work "The astronomical observatories of Jai Singh," Calcutta, 1918, issued in the series of reports of the Archaeological survey of India, New imperial series, vol. XL
Includes bibliographical references and index
Keywords: Astronomy -- History; Astronomical observatories; Astronomical instruments