抄録
It is pointed out that the transmission coefficients empirically obtained in (I) take the larger values in general those derived from theory by MAL and KNOPOFF (1965), which suggests the considerable effects of certain converted waves on behaviors of group of transmitted Rayleigh waves. An experiment denotes that two phases, SR and RS, are most significant among all the coverted waves, on the transmission along a step from elevated to depressed side and vice versa, respectively, and hence, group of transmitted Rayleigh waves consists of the following four phases; R+tr. R, RS+RRRS, SR+SRRR and SRS. The transmission coefficients of these phases are separately estimated through another experiment, sum of which almost coincides with the original coefficient in (I).
