TALBOT6206

Dear Sir,

I send you one or two specimens of Topaz containing the two new fluids. ¹ They are not so good as I could have wished but you will be able distinctly to see the leading phenomena.
1. The two immiscible Fluids
2. The Expansible fluid with its cavity which fills up with the heat of 60^o or thereabouts
Some of the cavities in these specimens are very good.

The misprint of mirror for mineral in my paper was a stupid oversight. I could not get a better word than serrated to express a very singular and ill defined appearance of tints like the teeth of a saw [diagram].

The Phil. Mag. ² is a discredit to the Journalism of the country. Every month I resolve to withdraw my name, and then I forget the resolution, not being willing to distress M^r Taylor. ³

I spoke to D^r Lyon about establishing a good journal to be both Physical & Chemical, but there seem to be no active persons in London with sufficient zeal to carry it on.

While there is a Journal in Cambridge for purely mathematical Papers, it is absurd to place them in a popular Journal like the Phil. Magazine.

What has become of the Review of your Work ⁴ that was to appear in the North British Review. ⁵ It is about to change its Editor. ⁶

Can you tell me any thing about the Rev^d M^r Bridges ⁷ who has executed some fine Talbotypes. My youngest Son⁸ has lately met him at Athens, and gives a very interesting account of him.

I am Dear Sir Ever Most Truly Yrs
D Brewster

S^t Leonard's College
S^t Andrews
Jan^y 22^d 1849

H.F. Talbot Esq^r
&c &c &c