Not mix (Books)

Expressions researched:
"Not by mix" |"no mixing" |"not a homogeneous mixture" |"not actually mix" |"not allowed free mixing" |"not allowed to mix" |"not extensively mix" |"not freely mix" |"not go to mix" |"not intimately mix" |"not like to mix" |"not mix" |"not mixed" |"not mixing" |"not possible to mix" |"not that we mix" |"not to mix" |"not want to mix" |"not wish to mix" |"unmixed"