R Institution | 17 June 1847
My dear Brunel
I do not think either the Naphtha or the Ammonia will hurt the Creosote as far as regards your use of it[.]
Ever Truly Yours | M. Faraday
I.K. Brunel Esq | &c &c &c
Please cite as “Faraday2000,” in Ɛpsilon: The Michael Faraday Collection accessed on