IN the discussion on relativity at the Royal Society on February 5 (NATURE, February 12), Mr. Jeans stated that the FitzGerald-Lorentz contraction theory presented grave difficulties in the case ...

Ch Frame Code Title 1 A Opening Sequence 2 02535 G Lorentz Transformation 3 03679 V Nineteenth Century Technology 4 06973 E 1881 Michelson-Morley 5 08291 H F. G. Fitzgerald 6 08603 E 1887 ...