July 19th.
Dear Sir,—I am perfectly satisfied with the mirror, a 6-1/2 in., now that I have tried it with your flat, and I have no difficulty in seeing star disks when the air is good.
I am, dear Sir,
Yours truly,
(Signed.)
Mr. G. Calver.
From The Rev. S. Tomlinson.
Carlisle Terrace, Malahide, 1877.
Dear Sir,—I write to tell you that I was very much pleased indeed with last night’s observations with your 18″. The star disks were good and well condensed, and stray light well gathered in, and when a good night comes I have no doubt of it.