Instrumentation

584 Archival description results for Instrumentation

68 results directly related Exclude narrower terms

The letter is from H. B. Peirce, General Superintendent, Public Works Department, to the Director of Kodaikanal Observatory regarding the proposal to have a handle for the roof, enclosing a letter from the Executive Engineer advising to have a second winch on the opposite wall to make the roof move smoothly.

Peirce, H. B.
IND-IIA-F213-I06 · Item · 19-09-1907
Part of Correspondence related to Spectroheliograph's roofing during 1907-1923

The letter is from H.B. Peirce, General Superintendent, Public Works Workshops, to the Director of Kodaikanal Observatory, requesting to let know at earliest convenience the exact distance between the rails of the sliding roof of Kodai Observatory lately supplied by the shops.

Peirce, H. B.
IND-IIA-F213-I08 · Item · 21-10-1907
Part of Correspondence related to Spectroheliograph's roofing during 1907-1923

The letter is from H.B. Peirce, General Superintendent, Public Works Workshops, to The Director, Kodaikanal & Madras Observatories, with reference to the gearing arrangements for moving the roof over the Spectro Heliograph enclosing a plan of arrangements available in shops. He requested to fill the measurement where it is marked 'X' and let know the length of the rack as early as possible.

Peirce, H. B.
IND-IIA-F193-I05 · Item · 09-03-1904
Part of Meridian Circle Reductions from 1862 to 1888

This item is a Letter from Gilbert T. Walker, meteorological reporter to the Government of India and Director-General of Indian Observatories to the Director of Kodaikanal and Madras Observatories regarding sanction for the plans and estimates.

Walker, Gilbert T.
IND-IIA-F210-I17 · Item · 24-05-1905
Part of Correspondences related to Signaling Time from the year 1904 to 1923

This letter is from Gilbert T. Walker, Meteorological Reporter to the Government of India and Director General of Indian Observatories, to the Director, inquiring whether any notice has been received from Washington regarding a unique series of midnight telegraphic signals to be sent out by the U.S. Naval Observatory on May 3 1905.

Walker, Gilbert T.
IND-IIA-F210-I20 · Item · 03-06-1905
Part of Correspondences related to Signaling Time from the year 1904 to 1923

This is a letter from Gilbert T. Walker, Meteorological Reporter to the Government of India and Director General of Indian Observatories, to the Director of the Solar Physics Observatory, Kodaikanal, regarding adopting standard time. An official order has yet to be received, so kindly arrange with the Superintendent of the Madras Telegraph Office to send the time signal at 16:00 hours, new standard time, after July 1.

Smith, Charles Michie

The letter is from Gilbert T. Walker to The Director of Kodaikanal & Madras Observatories requesting to inform whether the instruments- "Richard's Barograph" and "Do Thermograph" -are still in use at the Periyakulam Observatory and also the dates on which each of these instruments were brought into use at the observatory. The sheet also has the reply to it, which says the instruments were brought on 1st March 1901 and were still in use.

Walker, Gilbert T.

The letter is from Gilbert T. Walker to Charles Michie Smith asking about the dismissal of the Periyakulam as the performance of the observer was unsatisfactory, like tampering with the records. He asks to reply in a short wire by telegraph.

Walker, Gilbert T.