In 1781, prior to any Kantian reference in favor of the epigenesis – a direct, nominal reference, published in life –, two comparative passages of the “Architectonic of Pure Reason” will have drawn no attention from his readers. But, despite omitting that “augmentation” [Vermehrung], such passages shall lead, both on its own and jointly, to the possibility of a retrospective conflict regarding that theory; a conflict of a conceptual nature which may have repercussions on Kant’s position on the epigenesis, be it directly, on a metaphorical-speculative level, be it indirectly, on an embryological level. The present, ongoing study shall deal with the collocation of the problem, the presentation of some elements in view of its analysis and, finally, a possible solution for the difficulties which the two passages of both editions of the Critique indirectly raise.