Lacock Sept 19 / 58
Dr Sir
If you like to mention the new art of Photoglyphic Engraving in the next No of your journal, You are welcome to do so, but I should wish You to speak very moderately respecting its merits, in order that the Public may not be disappointed when they come to see specimens – It always produces a good effect, both in scientific inventions and in other matters, when the performance exceeds the promise. You are quite welcome to mention that a specimen of the Art will appear in your Journal in the course of a few weeks –
Yours very truly
H. F. Talbot