Comments about reflective power of metals.
Comments about reflective power of metals.
Further comments on subject of GS's 1859-11-10; comments on several experiments involving light and color.
Announces appointment of James D. Forbes to the Principalship of the United College at St. Andrews.
Questions concerning the manuscript of JH's Telescope. Will send proofs to London.
Offers to show JH his observatory and the polishing apparatus he uses. Comments on various telescope makers, especially Andrew Ross.
Fears his last letter may have gone astray owing to incomplete address. Will send off the photo of the moon on Saturday. Explains what he means by seven days of difference. Has also taken many photographs of the planets, which he will be pleased to send for his perusal.