“…Doolittle and Peterson (S) prepared and studied a number of n-paraffins. Wise and associates {6, 7, 12,13,16,17,35) have reported over 100 pure hydrocarbons, mainly dicyclics in the CJ2 and CiS range. A research group directed by R. W. Schiessler and the late F. C. Whitmore has prepared {31, 32, 38-40) over 230 pure hydrocarbons, covering many molecular types and classes over the range C8 to C50, with the greatest concentration in the C2ii to C30 region.…”