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This letter discuss about equation of a hyperbola and their work.

Letter from John Evershed to G. S. Chowla(Unidentifiable)

The 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.

The letter was about discussion on Schwarzehildd calculation for gravitational field round a small particle.

This fond contains materials related to John Evershed that contains general local office materials including letters of all local government and administrations, proceedings, reports to the government of India etc., A large portion of the collection series contains information on observations from various scientists.