Item 106 - Letter from George Airy

Open original Digital object

Identity area

Reference code

Add. MS a/200/106

Title

Letter from George Airy

Date(s)

  • 1 Nov. 1854 (Creation)

Level of description

Item

Extent and medium

3 pp.

Context area

Archival history

Immediate source of acquisition or transfer

Content and structure area

Scope and content

Royal Observatory Greenwich - GA is 'busy in the pendulum reductions, and till they are pretty far advanced or indeed completed we cannot tell how good the results are'. He sent six observers to Haston Colliery: 'I put up the apparatus and gave a few lessons, but I did not take a single observation'. GA gives a description of the tests: 'Galvonic wires were laid from one station to the other, and a telegraph needle was mounted by each clock face, and thus our clocks were compared by simultaneous signals without any necessity for chronometers'. GA is surprised at WW's report of Scoresby's remark on the non-correction of varying inductive force, and he should direct Scoresby [William Scoresby] to look at the Phil. Trans. for 1839 (p. 182-183): 'The effect of induced magnetism is very small, and I believe that ship-correcters very commonly neglect it'.

Appraisal, destruction and scheduling

Accruals

System of arrangement

Conditions of access and use area

Conditions governing access

Conditions governing reproduction

Language of material

Script of material

Language and script notes

Physical characteristics and technical requirements

Finding aids

Allied materials area

Existence and location of originals

Existence and location of copies

Related units of description

Related descriptions

Notes area

Alternative identifier(s)

Access points

Subject access points

Place access points

Genre access points

Description identifier

Institution identifier

Rules and/or conventions used

Status

Level of detail

Dates of creation revision deletion

Language(s)

Script(s)

Sources

Digital object (External URI) rights area

Digital object (Reference) rights area

Digital object (Thumbnail) rights area

Accession area