I HAVE during the last summer, at Macdonald Physical Laboratory, McGill University, examined the Raman spectra of benzene and toluene under the fairly high dispersion of 4-5 A. per mm. This work ...

This resulted in high-resolution IR spectra, which did not just display the vibrational movements of the H 2 S dimer, but also its rotations and tunneling splittings. Tunneling splitting describes ...