Item 62 - Letter from John Herschel

Open original Digital object

Identity area

Reference code

Add. MS a/207/62


Letter from John Herschel


  • [1 May 1845] (Creation)

Level of description


Extent and medium

4 pp

Context area

Archival history

Immediate source of acquisition or transfer

Content and structure area

Scope and content

John and Margaret Herschel will be delighted to see William and Cordelia Whewell on Tuesday: However because they are preparing for the scarlet fever currently ravaging the neighbourhood, 'we cannot ask you to become our inmates'. JH has received WW's resume of letters on the glacier theories. He thought he understood the subject when the controversy first broke out, but it 'seems to me now encumbered with so many considerations that I am not sure I do understand it'. JH thinks that besides solid fluid and viscous bodies the subject has another class belonging to it: 'Bodies easily disrupted and readily reuniting by stickage. The plasticity of most snow is very evidently of this kind - it is very evident on crushing up masses of it that it yields and Retoughens by sudden jerks. - I do not perceive that this has been noted in the controversy'.

Appraisal, destruction and scheduling


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


      Level of detail

      Dates of creation revision deletion




          Digital object (External URI) rights area

          Digital object (Reference) rights area

          Digital object (Thumbnail) rights area

          Accession area