Response to some papers sent to R.A.S.
Response to some papers sent to R.A.S.
On the observation of sun spots.
More on the construction of a good optical eyepiece for solar observations [see FH's 1864-4-27].
Would like FH to study a phenomenon that JH has noticed on the sun's disk and that has no connections with sun-spots.
Proposes to travel to visit FH next day to observe the sun with him.
Details about sunspot observations.
Writes to compare notes on sunspot observations.
Is at present too ill to involve himself in any calculations necessary for making a good optical eyepiece.
Returns a paper of Mr. Stobart, which deals with astronomical knowledge of the early Egyptians.
Sending FH drawings of sunspots made by W. R. Dawes. Asks FH to inspect them and forward them to R.A.S. secretary R. C. Carrington along with any sunspots drawings made by FH on the same dates.
Comments on remarkable solar activity. JH admits he has no theory to explain sunspots.