May 10th 1858
My Dear Sir
I have to thank you for your letter of October 15th containing information as to size and price to equatorials. We should probably content ourselves with a seven inch Telescope accordingly being completed to spend the money at once or not at all, I have had the equatorial room built to carry a dome 17 feet diameter.
The observatory will be finished in another month, after which I will send you a full description. I see no mention of a collinating eyepiece for Meridian Circle. Of course, Messrs Troughton & Simms will supply one.
Trusting that your large telescope may answer your expectations.
I remain dear sir
Yours very truly