The Bach family of musicians in Germany is a fine example of musical heredity. Among them were nineteen musicians of eminence. Fifty-seven of their names are found in the Dictionary of Music. At family reunions there were counted as many as two hundred and fifty church organists and choir leaders. The genius for music appears to be as easily transmitted as that for art or militarism. There appears to be only a very few exceptions among the great musical geniuses. Cæsar, Alexander, Wellington and Hannibal seem to have inherited a genius for war. Napoleon Bonaparte’s Corsican mother, before his birth, accompanied her husband to the field of war, exposing herself to deprivation and danger, and being elated and thrilled by every victory. When a child, he showed the military spirit. As a man of eighteen and twenty he was a failure and attempted suicide. When twenty-three he was given a chance to quell a raging mob in Paris, and crushed it in his first effort. From that time until England chained him he conquered everything before him. From the days of the Crusades to the war with Spain we find the Lees were military leaders. Cromwell and Grant appear to be exceptions to the rule. =Max Jukes.=--Vice, as well as virtue, runs in families. Max Jukes was born in 1703. Both he and his wife were born of inferior parents. He was a drinking man and seemed to delight in breaking law. His wife was a common prostitute. We have identified and studied eleven hundred and three of his descendants. One hundred and twenty-six were thieves and murderers and spent several years in the penal institutions, ninety female prostitutes, one hundred and forty-five drunkards; two hundred and eighty-five were viciously diseased and four hundred had either consumption, epilepsy, or were feeble-minded. Eleven hundred and three were delinquents--not one a good citizen. They cost New York a million and a quarter dollars. =Jonathan Edwards.=--Jonathan Edwards was born in 1720. He and his wife had splendid heredity. They were well educated. They were converted to Christ in childhood. We have identified and studied thirteen hundred and ninety-four of their descendants. We find thirteen university presidents; one hundred and twenty-three college and university professors; thirty-two eminent authors; ninety-six physicians; over two hundred ministers; four hundred successful business men; one vice president; mayors of large cities, U. S. senators and congressmen; ministers to foreign ports; only one left a stain on the family record--Aaron Burr who fought a duel with Alexander Hamilton.