Encyclopaedia Britannica, 11th Edition, "Electrostatics" to "Engis"

part in the future development; the prospective value (_prosp.

Bedeutung_--D.) of each blastomere depends upon, or is a function of, its position in the whole of the segmented egg; we can term the "whole" of the egg after cleavage an "aequipotential system" (Driesch). But though aequipotential, the whole of the segmented egg is nevertheless not devoid of orientat...