2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/61016In a 1985 paper, Berthold J. Maier gave necessary and sufficient conditions for the weak embeddability of amalgams of two nilpotent groups of class two over a common subgroup. Then he derived simpler conditions for some special cases. One of his subsequent results is incorrect, and we provide a counterexample. Finally, we provide a fix for the result.Four pages, LaTeX fileGroup Theory20F18, 08B25, 18A30, 20E10, 20E06text