No summary available.
Showing 1–20 of 30 items
No summary available.
No summary available.
No summary available.
No summary available.
No summary available.
No summary available.
No summary available.
No summary available.
No summary available.
No summary available.
No summary available.
No summary available.
No summary available.
No summary available.
Indicates the best way for the glass subcommittee [of the R.S.L.] to deal with the results of glass experiments at the Royal Institution [see MF's 1827-11-3].
Informs MF that JH has been called to serve on a grand jury and so may have to miss some glass subcommittee meetings. [This note enclosed the letter written by JH on 1827-11-6.]
Describes the tests JH made on a small glass prism of not very high quality, which JH has left at the Royal Institution.
Sends MF some older samples of imperfect glass. Talks about the way in which different kinds of glass should be layered in lenses.
Sends a note with a letter from W. H. Wollaston to JH, dealing with glass making experiments.
Chemical constitution of meteorites. JH suspects lead-iron alloy. Believes this has not been proposed before. Send specimen for JH's analysis.