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Letter, from John Henry Dallmeyer to Sir John Herschel, dated at 19 Bloomsbury St.

Reference number: HS/6/8

Date: 23 December 1870

Description

Autograph letter signed by sender. Has made a trial of John Frederick William Herschel's lens but it was too large to be satisfactory. Regarding the 'graphoscope,' a new toy. Has been concerned with the manufacture of an improved form of opera glass. Present forms have many imperfections. Gives details of his own theories and sends one for John Frederick William Herschel's notice.

Reference number
HS/6/8
Earliest possible date
23 December 1870
Page extent
7 pages
Format
Manuscript

Creator name

John Henry Dallmeyer

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Citation

John Henry Dallmeyer, Letter, from John Henry Dallmeyer to Sir John Herschel, dated at 19 Bloomsbury St., 23 December 1870, HS/6/8, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/hs_6_8/letter-from-john-henry-dallmeyer-to-sir-john-herschel-dated-at-19-bloomsbury-st, accessed on 10 November 2024

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  • Herschel Letters

    Dates: 1807-1875

    This collection of nearly 10,900 letters, drafts, copies and notes is the largest repository of scientific correspondence from and to Sir John Herschel, leading figure of Victorian science.

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