My dear Sir Henry

I did not write to thank you for your kind note, until I knew Studer’s plans. He has been here & I now find that he is too much pressed for time to visit your working party, though on his return from Wales, he will perhaps return by the great Holyhead road.

He is much obliged to you for your kind offer & would have liked very much to have accepted it.— He is going to visit the Edinburgh Forbes.—¹

I am glad to hear about the very old rocks under the Silurians;² there is something so grand & mysterious at these depths.—

With my thanks, believe me | dear Sir Henry | Yours sincerely | C. Darwin