Referee's report by Frederick Augustus Abel, on a paper 'An experimental investigation of the circumstances under which a change of the velocity in the propagation of the ignition of an explosive gaseous mixture takes place in closed and open vessels. Part I. Chronographic measurements' by Frederick John Smith Recommended for publication in the 'Philosophical Transactions of the Royal Society'. The paper presents original observations. Subject: Physics and Chemistry, Mathematics, Applied Sciences [Published in the 'Proceedings of the Royal Society of London', 1889] 30 March 1889