TALBOT2719

My Dear Sir,

I have only this moment received your Letter, ¹ and Paper of the 18^th June on my return from Cambridge, ² where I was much disappointed at not finding you, as there was no other Philosopher of any note absent but yourself.

Such a Scene I have never seen, & perhaps never will see again.

I saw there Wheatstone’s ³ beautiful experiments, & was therefore much interested in your paper, where you have described your proposed experiment very clearly.

I have already tried two other salts of chromium beside the oxalate of Potash & Chromium, ⁴ but I am not sure, till I see my Memoranda, which are at present in the Highlands, whether or not it was the Sulphate. I shall try however to make that salt in the way you mention.

In consequence of the death of my Brother in Law ⁵ I am just about to take up my residence at Belleville ⁶ near Kingussie in Inverness-shire where I shall have more time to pursue my scientific inquiries. I am getting a Heliostate ⁷ made, and most fortunately I have at Belleville an uninterrupted passage within the house ninety two feet long, with an East Window at one end and a West one at the other. This length of transit for the Solar Ray was almost necessary in using the five feet Achromatic Telescope which I have got the use of from Sir Jas. South. ⁸ It will give me great pleasure to hear from you,

and I am My Dear Sir Ever most Faithfully yrs
D Brewster

Allerly
July 5^th 1833

H.F. Talbot Esq^r M.P.
31 Sackville Street
London
to be forwarded to the Continent
Poste restante
Berne
Suisse
Lucerne
Switzerland