Copy letter from an unknown correspondent, to Louis Napoleon George Filon, [Fellow of the Royal Society] States the title of Filon's paper 'On the Resistance to Torsion of Certain Forms of Shafting' [which has presumably been recommended for publication]. Has been requested to call Filon's attention to the enclosed remarks abstracted from a referee's report. After reading this Filon may see fit to modify his manuscript, which can be returned. [11] July 1899