The lack of bimodal adhesion variation between steps at 30% C30H61OH shows no observable systematic ordering of the terminal alcohol groups at this composition. At 50% C30H61OH, the adhesion data together with significant contrast variations in low-angle ADF-STEM may point to separation of phases in these drop-cast mixtures (Figure ), possibly into two or more immiscible phases. Up to 30% C30H61OH, the data appears consistent with the formation of a single crystal, likely a solid solution within the C31H64, as may be expected from the rich solid solution formation expected from alkanes of similar lengths . SED of the 'chains-flat' samples point to a similar conclusion, with the loss of distinct grain structures arising above the 30% C30H61OH (Figure ). At higher C30H61OH content, the competition between staircase packing in C30H61OH and lamellar ordering in C31H64 likely introduces structural disruption of the wax microstructure. Due to the similarity in d-spacings, however, an unambiguous evaluation of changes in the crystal phases with compositions beyond changes in the systematic changes in disordered microstructure is not possible by these electron diffraction measurements.