Referee's report by Hugh Longbourne Callendar, on a paper 'Heat of crystallisation of quartz' by Rames Chandra Ray Sectional Committee: Chemistry Recommended for publication in the 'Proceedings of the Royal Society of London'. Suggests the English requires careful revision. Suggests some clarification is required. [Published in the 'Proceedings of the Royal Society of London' A, 1922] Endorsed on verso as received 29 May 1922. [May 1922]