Instrumentation

584 Archival description results for Instrumentation

68 results directly related Exclude narrower terms
IND-IIA-F199-I14 · Item · 26-11-1911
Part of Electrical Installations in Kodaikanal

This is a letter from the director of Kodaikanal and Madras Observatories to the executive engineer madura special division. It states that a small shed is required at a distance of about 600 feet from the engine house for protecting the pump that supplies water to the generating plant and the observatory.

Kodaikanal and Madras Observatories
IND-IIA-F197-I03 · Item · 24-02-1913
Part of Correspondence related to buildings in Kodaikanal Solar Observatory

This item is a letter from John Evershed, Director of Kodaikanal and Madras Observatories, to the sub-division officer P.W.D Kodaikanal stating that the plans of the new buildings were submitted by the supervisor, which were returned with the required details.

Evershed, John
IND-IIA-F213-I07 · Item · 21-09-1907
Part of Correspondence related to Spectroheliograph's roofing during 1907-1923

The letter is from John Evershed, Director, Kodaikanal and Madras Observatories to The General Superintendent, Public Works Workshops, Madras replying to his letter of 17-09-1907 stating that the distance between the rails of the new sliding roof of that observatory is 14ft. 3 3/4 in. measured from centre to centre of rails.

Evershed, John