Faraday to James Timmins Chance   4 August 1860

[Royal Institution embossed letterhead] | 4 Aug 1860

My dear Sir

Have you perchance a fragment or a bad piece of one of the upper reflectors which you could bring to Whitby next week and by which we could see practically what amount of change in position would suffice to make the image of the horizon travel over a certain small angle?

Ever Truly Yours | M Faraday

Jas. Chance Esq | &c &c &c