"Saccular" Quotes from Famous Books
 ... the nature of the organs produced by each of the two primary layers, and the mode of their formation. Does the occurrence of blastulae and gastrulae and one-celled beginnings mean that the higher animals composed of numerous and much differentiated cells have evolved in company from two-layered saccular ancestors which were themselves the descendants of spherical colonies of like cells, ...
— The Doctrine of Evolution - Its Basis and Its Scope • Henry Edward Crampton |
