Telegraphic determinations of the difference of longitude between Karachi, Avanashi, Roorkee, Pondicherry, Colombo, Jaffna, Muddapur and Singapore, and the Government Observatory, Madras
By: by Norman R. Pogson.
Contributors: Madras Observatory (India)
Publisher: Printed at the Lawrence Asylum Press, by W. H. Moore
Published: 1884
Place of publication: Madras
Language: eng
Number of pages: 51
Subjects: Longitude.; Geographical positions -- India.