The document was sent from the Director General of Observatories to Thomas Royds in 1913. The Director General of Observatories inquired about the order of the new screw for the Ponna micrometer in response to John Evershed's letter dated 18th August 1913.
Sin títuloMicrometer
11 Descripción archivística resultados para Micrometer
This letter is from John Evershed to the Director General of Stores regarding the photo micrometer, referred to as his private property. Still, it would be mainly employed in research at the Kodaikanal Observatory.
Sin títuloThis letter from Major S.G. Burrard to the Government Astronomer mentioning that Lenox Conyngham is dissatisfied with his Zenith Telescope results and with determinations of the Micrometer value, so he asked for sparing Dehra Zenith sector till next September.
Sin títuloThis letter to Dr. Walker informs that the Director will arrange to despatch the necessary fittings for the new screw for the Poona micrometer to Hilger by next mail by next March
Sin títuloThis letter is from Meteorological Department to the Director of Kodaikanal and Madras Observatories regarding a payment for one spectrum comparing Micrometer supplied to the Kodaikanal Observatory
Sin títuloLetter to the Director-General of Observatories regarding the specification of a new Micrometer for the Madras Transit Instrument
Sin títuloThis Letter is from W. Butler, the Director General of Stores to The Director about the forward of Microphotometer which had been received from Mr. Toepfer
Sin títuloThis letter states that the Photomeasuring micrometer is not yet finished and also mentions that they installed a special grinding machine
Sin títuloThe letter is from G. C. Simpson, imperial meteorologist, to John Evershed, Director of Kodaikanal and Madras Observatories, regarding 2 micrometres. It states that there were two Hilger bills as there were two micrometers filled with a new screw coating, and only one of the bills has been paid for.
Sin títuloThis letter is from the Director of Kodaikanal and Madras Observatories to the Director General of Observatories, Simla regarding the micrometer eyepiece which was rebooked to Madras unopened as desired by the Deputy Director, Madras Observatory
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