[Royal Institution embossed letterhead] | 12 Aug 1861
My dear Sir
In all haste but yet I hope effectually I have done as you desired - & written with your report1. I should like a record on the brass of the focal measures & the horizon dip - but the authorities will tell you[.]
Ever Yours | M. Faraday
Jas. Chance Esqr | &c &c &c
Please cite as “Faraday4040,” in Ɛpsilon: The Michael Faraday Collection accessed on