Referee's report by William Lawrence Bragg, on a paper 'On electro-crystalline properties as conditioned by atomic lattices' by Joseph Larmor Sectional Committee: Mathematics Recommended for publication in the 'Proceedings of the Royal Society of London'. Refers to work by Woldemar Voigt. The paper 'breaks new ground' but is 'not sufficiently familiar with the subject to be absolutely certain that this is the case'. [Published in the 'Proceedings of the Royal Society of London' A, 1921] Endorsed on verso as received 19 February 1921. [February 1921]