"Thou shalt not sow the field with, divers seeds." In these precepts God has taken care to guard the wholesome generation of plants as well as of animals.
The successful intermingling of the Protestant Anglo-Saxon immigration with our own people in the second and third generations is not an exception to the law of generation, as both are but branches of the same stock, and are successfully planted together.
Nor is the mortality which follows the Catholic immigration an exception to the beneficial law of migration, for habits of intemperance account for the short lives of these immigrants; and though their offspring is abundant, yet it is all tainted with an inheritance of disease, and too many of the children suffer the ruinous consequences of having drawn "still slops" from a mother's breast in infancy.
For physically, and in the chain of generation, most truly are the sins of the fathers visited upon the children to the third and fourth generation.
Our collection of material for an argument will be complete when I have added that the trees most prolific of artificial fruit die the earliest, and suffer most from running sores; that the vines cultivated artificially to produce the choicest wines suffer most from the mildew, and the potatoes of the most artificial varieties are the ones that have suffered most from the rot. When the cholera first visited Mexico, its passage through the country was like the ravages of the Angel of Death among the Meztizos and the fragments of decaying races. And this progress toward depopulation can not be stayed by the infusion of a vigorous stock. The law of sexuality in plants leads to the intermarriage of the vigorous with the decaying and the intermixture of blossoms; nor can human plants long vegetate together without intermarriages, which ingraft the vigorous constitutions with the virus of the old and decaying.
PROSPECTS OF MEXICO.