R Institution | 18 Novr. 1841
My dear Sir
The only double coil we have (a poor one) I have put with the other things for you[.] I have not used it for some time past & you must ascertain that there is no touching of the wires of the two coils one with another.
Ever Yours | M. Faraday
W.R. Grove Esq | &c &c &c
Please cite as “Faraday1372,” in Ɛpsilon: The Michael Faraday Collection accessed on 29 April 2024, https://epsilon.ac.uk/view/faraday/letters/Faraday1372