Papers of William Christie

'Reductions', a collection of papers relating to the determination of the difference in longitude of Paris and Greenwich. There is an index listing the following sections:

1. 'A Preliminary Reduction of the first part of the Longitude made in May and June 1902'.

2. 'The selection of stars to be observed, Ephemerides, and computation of corrections to star places'.

3. 'Computations of Clock Error and Rates'.

4. 'Computation of Longitude'.

5. 'Tabulation of Level Errors'.

6. 'History and Records of Observations'.

Indexed