VI. Experiments on the absence of mechanical connexion between ether and matter

The conclusion of the experimental part of a previously published memoir, on “Aberration Problems and the connexion between Ether and gross Matter,” dated March, 1892, and published in the ‘Phil. Trans.,' Series A, for 1893, p. 777, is as follows:— “The velocity of light between two steel plates moving together in their own plane, an inch apart, is not increased or diminished by so much as 1/200th part of their velocity.”