This letter was about informing Gilbert T. Walker of sending a slide of the Nova Acquilae Spectrum with Arctururs above it for comparison taken at the Kodaikanal Observatory on the night of June 19-20.
Evershed, JohnLetters
1110 Archival description results for Letters
The letter was a critisism by Evershed on the assumption of radial outflow of gases with a velocity increasing with heigh above the photosphere, combined with a constant relativity effect.
Evershed, JohnThis letter is from John Evershed, Director of Kodaikanal and Madras Observatories, to Gilbert T. Walker, Director General of Observatories. This talks about the sanction for petty construction and repairs, which amounts to Rs.500, which is insufficient as the estimate is based on average expenditure for the past 3 years
Evershed, JohnThis letter was a reply to the letter discussing definite periodicity in sunspot activity in the mean period being 11.12 years.
Evershed, JohnThe letter was to inform G. S. Chowla the dislikeness of Dr.Gilbert T. Walker for the clamping arrangement made in R.A., and asking for the required arrangement to take make the clamping arrangements right.
Evershed, JohnLetter from John Evershed to G. S. Chowla(Unidentifiable)
Evershed, JohnThe 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.
Evershed, JohnThis letter is from John Evershed to G. C. Simpson, Director General of Observatories, in reply to D.O. No. 6347 about the visibility of eclipses from India and Mesopotamia in 1920. It was mentioned about the difference between Indian Standard time and Mesopotamian times of the eclipses.
Evershed, JohnThe letter was an acknowledgment of the photoheliograph received and experiences shared by using equatorial telescope to take solar photographs.
Evershed, JohnThe letter was to inform Edward Barnes to arrange for trained workers for the magnetic observation that P. R. Chidambara Aiyar was supposed to do.
Evershed, John