[Tcs-lc] NomenclaturalCode

[Richard Pyle]

> and 5 [ICN] would
> unfortunate, not all nomenclatual codes have or will have an ICN_
> abbreviation.

ICN="International Code of Nomenclature"

It was not intended as three of the four letters of the abbreviations of
ICBN or ICZN; it was intended as an abbreviation of "International Code of
Nomenclature", which *all* codes of nomenclature are.

Rich