“…Because the review of the earlier investigations of the H 2 S spectra was made in [1], we will not repeat it here. As to the high-resolution spectrum in the region discussed in the present study, it was mentioned in [2] and only a few information was reported: the numbers of assigned transitions (74 and 86), maximum values of the upper quantum numbers J and K a (J = 9, K a = 7 and J = 9, K a = 8), and values of the band centers (8697.142 and 8697.155 cm À1 ) for the parallel and perpendicular type bands, 3m 1 + m 2 and 2m 1 + m 2 + m 3 , respectively.…”