Charles Lock Eastlake to Faraday   23 November 1857

7 Fitzroy Square. W. | 23 Novr. 1857

My dear Sir

Can you give me the address of an operative chemist whom you can recommend. I am desired by Mr Cope¹, who is employed on some frescoes in the Palace of Westminster, to have some grey sand analysed. The lime on which frescoes are executed is commonly mixed with river sand of a lighter colour. The reason why Mr Cope wishes to have this grey sand analysed is that in some experiments with it the plasterer shewed that the trowel was blackened. It is also desirable to have a piece of old plaster (of an early Italian fresco) examined so as to detect the nature & quality of the sand used.

As these analyses may require some care I shall be obliged by your giving me the address of a fit operator to whom you will perhaps allow me to mention your name.

I remain, my dear Sir, | Yours faithfully | C.L. Eastlake

Professor Faraday