Referee's report by Alexander Macalister, on a paper 'An investigation on the variability of the human skeleton: with especial reference to the Naqada race discovered by Professor Flinders Petrie in his explorations in Egypt' by Ernest Warren Recommended for publication in Philosophical Transactions. The paper is a distinct advancement of natural knowledge. A more expansive bibliography should be included and a few minor modifications should be made. Subject: Physiology [Published in Philosophical Transactions B, 1897]. 1 June 1897