Referee's report by James Clerk Maxwell, on a paper 'Account of experiments on the flexural and torsional rigidity of a glass rod, leading to the determination of the rigidity of glass' by Joseph David Everett Recommended for publication in the 'Philosophical Transactions of the Royal Society'. Refers to work by Gustav Kirchhoff as published in the Philosophical Magazine. Suggests reference to Gustav Kirchhoff's work be made clearer, considering the similarity of their methods. Subject: Physics and Chemistry [Published in the Philosophical Transactions of the Royal Society] 1 March 1866