Referee's report by Robert John Strutt, Lord Rayleigh, on a paper 'Investigations on the scattering of light in colloidal solutions and gels. Part I—Agar sol and gel' by K. Krishnamurti Sectional committee: Physics Referee feels they cannot offer an opinion,as they do not know enough about colloid chemistry and physics. The paper should be shortened to two thirds of its current length. [Published in Proceedings of the Royal Society A, 1929]. Endorsed on verso as received 30 August 1928. August 1928