In the Second Sermon Jung is concerned with the existence of a primal dichotomy within the psyche, a dichotomy which is united by a mysterious reconciling power of existential activity, named by Jung on the Basilidean model as Abraxas.

Oh, Danny boy, the pipes, the pipes are calling From glen to glen, and down the mountain side, The summer's gone and all the roses falling, It's you, it's you must go and I must bide.

2010, Citizen Hobo: How a Century of Homelessness Shaped America By Todd DePastino

Bailey and Pain (1971) examined the walls of a wide range of species of ferns (both leptosporangiate and eusporangiate) and divided the species into three groups depending on whether their walls contained low (0-3%), medium or high (>10%) concentrations of mannose.