(London, W. Bulmer and Co., 1801). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1801 - Part II. Pp. 354-362 a. 1 engraved plate. The plates depicts the experimental apparatus.
First appearance of Herschel's paper on emission of the Light and Heat of the SunTogether with this paper is: Thomas Andrew Knight, ""Account of some Experiments onthe Ascent of the Sap in Trees."", pp. 333-352 a. 4 engraved folded plates.