“…Spin-echo techniques in the Earth's magnetic field range (359), new techniques of spin-echo observations (360), Fourier transform spin-echo spectroscopy (361), moments of echo lines (362), photo echo-nuclear double resonance in ruby (363), spin-echo studies of solids (364)(365)(366)(367)(368)(369)(370)(371)(372)(373)(374)(375)(376), benzene absorbed on silica (377), liquids (378)(379)(380)(381)(382)(383)(384), solutions containing Ni(II) and Co(II) ions (385,386) and helium-3 gas (387) have been reported. Various applications of the spin-echo method to chemical kinetics have been described (388)(389)(390).…”