From Robert Hunt 24 July 1855
Museum Practl Geology | Jermyn St.
24th July 1855
My dear Sir.
the glasses which I sent you—are not those named in the Researches as the three—effective respectively in accelerating germination—lignification and floriation.1 For the former an intense Cobalt blue glass is required—for the 2nd. a Silver Yellow—and for the 3rd a deep Copper Red. I mean the glasses should be of the fullest tint which those metals will give. If you would write M. Bontemps at Messrs Chance Brothers—Glass Works, Birmingham2 and state the Size—and the character of the glasses you desire to have, I have no doubt he would immediately send them you— You may use my name in writing.
Unfortunately my duties will carry me out of Town this week—and I shall be absent for some time—but any letter sent to the Museum3 will be forwarded to me—and I shall have the greatest pleasure in aiding you to the utmost in your experiments— Since I am not likely to renew them for many years, if ever, I am much pleased to find them taken up by one so well able to investigate this interesting subject
I am | My dear Sir | Yours most truly | Robert Hunt Chs Darwin Esqr
Footnotes
Bibliography
Hunt, Robert. 1854. Researches on light in its chemical relations; embracing a consideration of all the photographic processes. 2d ed. London.
Summary
Informs CD which colours of glass accelerate germination, lignification, and floriation; advises CD on obtaining such glass and offers his help in any experiments.
Letter details
- Letter no.
- DCP-LETT-1730
- From
- Robert Hunt
- To
- Charles Robert Darwin
- Sent from
- Museum of Practical Geology
- Source of text
- DAR 261.11: 18
- Physical description
- ALS 3pp †
Please cite as
Darwin Correspondence Project, “Letter no. 1730,” accessed on 28 March 2024, https://www.darwinproject.ac.uk/letter/?docId=letters/DCP-LETT-1730.xml
Also published in The Correspondence of Charles Darwin, vol. 5