Referee's report by James Clerk Maxwell, on three papers 'On the resistance of the air to the motion of elongated projectiles having variously formed heads' by Francis Bashforth, 'On the resistance of the air to rifled projectiles' by J A Longridge and 'On the law of the resistance of the air to rifled projectiles' by Charles Watkins Merrifield Francis Bashforth paper Recommended for publication in the 'Philosophical Transactions of the Royal Society'. Refers to ballistic pendulum of Benjamin Robins. Some of the work has already been published in the Proceedings of the Royal Artillery Institution. Subject: Mathematics [Published in the Philosophical Transactions of the Royal Society] J A Longridge paper No clear statement regarding publication in the 'Philosophical Transactions of the Royal Society'. Refers to work published in the Report of the Special Armstrong and Whitworth Committee. Subject: Mathematics [Published in the 'Proceedings of the Royal Society of London'] Charles Watkins Merrifield paper Recommended for publication in the 'Philosophical Transactions of the Royal Society'. Refers to Lee-Metford rifle. The results are not as 'complete as might be wished', but the scale and consistency adds value. Subject: Mathematics [Published in the Philosophical Transactions of the Royal Society] 19 May 1868