Paris den 4tenDecemb ǀ 1859
Hoch geehrtester Herr Thyndal
Die beyden instrumente welche si mir die Ehre machen zu bestellen werde im Monath februar fertig werden ich werde alles mögliche thun damit sie Ihnen gefallen. Ich verbleibe mit der grosste Hochachtung
Ihr | ganzergebenster | Ruhmkorff
Paris 4th Decemb | 1859
Most dear Mr Tyndall
The two instruments1 which you do me the honour of ordering will be ready in the month of February. I will do everything possible to ensure they meet your approval. Respectfully
Yours | sincerely | Ruhmkorff
RI MS JT/1/R/42
The two instruments: It is uncertain what instrument Tyndall had ordered from Ruhmkorff, but Jules Célestin Jamin mentioned a device being sent to Tyndall in letter 1721.
Please cite as “Tyndall1663,” in Ɛpsilon: The John Tyndall Collection accessed on