With reference to the physiological side of the theory set forth, I wish now to mention that Burdach, who erroneously assumes that the same psychical qualities may be inherited now from the father, now from the mother, yet adds (_Physiologie als Erfahrungswissenschaft_, vol. i. § 306): “As a whole, the male element has more influence in determining the irritable life, and the female element, on the other hand, has more influence on the sensibility.” What Linné says in the “_Systema naturæ_,” Tom. i. p. 8, is also in point here: “_Mater prolifera promit, ante generationem, __ vivum compendium medullare novi animalis suique simillimi, carinam Malpighianam dictum, tanquam plumulam vegetabilium: hoc ex genitura Cor adsociat ramificandum in corpus. Punctum emin saliens ovi incubantis avis ostendit primum cor micans, cerebrumque cum medulla: corculum hoc, cessans a frigore, excitatur calido halitu, premitque bulla aërea, sensim dilatata, liquores, secundum canales fluxiles. Punctum vitalitatis itaque in viventibus est tanquam a prima creatione continuata medullaris vitæ ramificatio, cum ovum sit gemma medullaris matris a primordio viva, licet non sua ante proprium cor paternum._” If we now connect the conviction we have gained here of the inheritance of the character from the father and the intellect from the mother with our earlier investigation of the wide gulf which nature has placed between man and man in a moral as in an intellectual regard, and also with our knowledge of the absolute unalterableness both of the character and of the mental faculties, we shall be led to the view that a real and thorough improvement of the human race might be attained to not so much from without as from within, thus not so much by instruction and culture as rather upon the path of generation. Plato had already something of the kind in his mind when in the fifth book of his Republic he set forth his wonderful plan for increasing and improving his class of warriors. If we could castrate all scoundrels, and shut up all stupid geese in monasteries, and give persons of noble character a whole harem, and provide men, and indeed complete men, for all maidens of mind and understanding, a generation would soon arise which would produce a better age than that of Pericles. But, without entering into such utopian plans, it might be taken into consideration that if, as, if I am not mistaken, was actually the case among certain ancient nations, castration was the severest punishment after death, the world would be delivered from whole races of scoundrels, all the more certainly as it is well known that most crimes are committed between the age of twenty and thirty.(36) In the same way, it might be considered whether, as regards results, it would not be more advantageous to give the public dowries which upon certain occasions have to be distributed, not, as is now customary, to the girls who are supposed to be the most virtuous, but to those who have most understanding