Referee's report by Edmund Taylor Whittaker, on a paper 'A critical study of spectral series.–Part II. The p and s sequences and the atomic volume term' by William Mitchinson Hicks Sectional Committee: Physics and Chemistry Recommended for publication in the 'Philosophical Transactions of the Royal Society'. The paper is a continuation of the author's previous work. [Published in the Philosophical Transactions of the Royal Society, 1913] Endorsed on verso as received 17 February 1912. [February 1912]