Referee's report by William Allen Miller, on a paper 'Investigations of the specific heat of solid bodies' by Hermann Kopp Recommended for publication in the 'Philosophical Transactions of the Royal Society'. Considers the paper more similar in style to an encyclopedia entry than a Royal Society paper. Refers to work by Dulery [?] and Petit [?]. The paper is very long, but cannot se a way of reducing it without asking the author to re-write; considering the reputation of the author and the fact that the paper has already been translated onto English, advises against a re-write. Subject: Physics and Chemistry [Published in the Philosophical Transactions of the Royal Society, 1865] 16 November 1864