658 WHITMAN. 



embryo, furnish, as I believe, decisive proof of a definite 

 organization in the egg, prior to any cell-formation. The opinion 

 expressed by Huxley in his review of "The Cell-Theory," in 

 1853, forms a fitting conclusion to this introductory sketch. 



" They [the cells] are no more the producers of the vital 

 phenomena than the shells scattered along the sea-beach are 

 the instruments by which the gravitative force of the moon 

 acts upon the ocean. Like these, the cells mark only where 

 the vital tides have been, and how they have acted. "^ 



^ British and Foreign Medico-chirurgical Review, Vol. XII, p. 314. Oct., 1853. 



