The envelope carries a 2 cent stamp. Two Postmarks:
The back of the envelope has three postmarks
My Dear Prof Mendenhall
I have had your grating for Sir Wm Thompson some time now after four attempts to rule it. It’s a glorious one for 2 or 3 spectrum on one side. I wrote to Prof Robinson a week ago to get your address but he must be away, as I rced no answer. Yesterday, I met Mr. Young and I asked him if he knew your address, and fortunately rced an affirmative reply. The grating is in a mahogany box lined with velvet but I am not sure this is the best thing though the velvet does not touch the ruling. Now will you please inform me of your wishes in reference to the grating. Shall I ship it to you or Shall I send it to Sir Wm Thompson whichever way you like. If you send it I advise you to have it put first in a tin box & soldered up. This is the way I have usually sent them across the sea. I shall await your reply and will be pleased to carry out your wishes. I spent a pleasant afternoon a few weeks since with Mrs. Draper and was delighted to learn that she had offered you the position of “charge de Affair” in the Obs & Laboratory of our dear departed Dr. Draper- but- sorry to learn that you had not found it convenient to accept it. The Dr. was a very dear friend of mine in my early studies and the last time I went to Hastings I could not suppress the tears as I looked at the deserted Observatory and Laboratory of two such Grand Men As the Dr. and his father, whose writings I consider equaled by none. I could write more on this Subject, but must desist. Wishing for you the best of health and continued success in your researches I am faithfully yours JA Brashear