Faraday to Walter Calverley Trevelyan   7 February 1827¹

Royal Institution | Feby 7. 1827

Sir

I find that the substance upon the surface of the fungus is nearly pure resin having all the general properties of that body[.]

I should like to lay the specimen that I have on our Library Table at the Converzation next Friday Evening if you have no objection to my doing so²: it may excite a remark or interest some of the lovers of Natural History that may be present.

I have thought that perhaps you would like to see how we spend our Friday Evenings here and under that impression beg to inclose a ticket which, if you do not use, perhaps you will do me the favour to burn.

I am Sir | Your Obedient Servant | M. Faraday

W. Trevelyan Esq | &c &c