Referee's report by James Booth, on a paper 'Researches in symbolical physics. On the translation of a directed magnitude as symbolised by a product. The principles of statics established symbolically' by Matthew O'Brien Recommended for publication in the 'Philosophical Transactions of the Royal Society'. Refers to work of Francis Maseres, Buat in the Annales Mathematiques [?], John Warren, William Rowan Hamilton, John Thomas Graves and Augustus De Morgan. Discusses symbols for right and left handed positions in an equation. Thinks the paper has been written hastily. Suggests the author be asked to rewrite the paper and further develop his ideas. Subject: Physics, Mathematics [Published in the 'Proceedings of the Royal Society of London'] 25 November 1851