Further to my last mail:

Yep, - progenitors not progeny – a momentary lapse of attention of a kind I
am prone to – (especially on a Friday evening after a glass of wine, or
two), and realised long before kindly members began writing to me off list
to explain the matter.

Given the content of the original mail, this quote from Veblen seems oddly
pertinent:

“Great purity of speech is presumptive evidence of several successive lives
spent in other than vulgarly useful occupations......it is the first and
readiest test of reputability in learning, and conformity to its ritual is
indispensable to a blameless scholastic life.”

Rob Tye, York, UK, (no affiliation)