June 20/ 54
I am very much obliged by your letter. I will in the first plan send you a printed copy of my specification. I expect some home form the printers tomorrow or next day Also a copy of a certain affidavit made by Sir D. Brewster, which puts the point in dispute between me and the infringers in a clear and lucid form, and expresses his own personal opinion respecting it.
I remain Dr Sir Yours vry Truly
H. F. Talbot
W. T. Brande Esq