Reports observing curious depositions of ice around the decaying stems of vegetables during frost. Speculates on the possible source.
Reports observing curious depositions of ice around the decaying stems of vegetables during frost. Speculates on the possible source.
Reports on a simple mode of obtaining from a common Argand oil lamp a greatly increased quantity of light.
Attempts to clarify claims published by John Davy concerning whether his brother Humphry Davy had in 1827 promised Charles Babbage a position as secretary of the R.S.L.
Attempts further clarification of the matter discussed in JH's 1864-12-20 to the P.M. Reiterates JH's recollection of a conversation between W. H. Wollaston and Humphry Davy, which JH had described in a letter [see JH's 1826-11-25 to Francis Baily] and which JH refers to in his letter of resignation to Davies Gilbert [see JH's 1827-6-27], which latter letter JH quotes.