We have thus before us a broad outline of the Marquis of Worcester's birth, education, studies, and scientific pursuits. His tastes and employments were not suited to a successful political or military career, at a time when the rupture between the Crown and the Parliament rendered it necessary for every man to take the side either of the Cavaliers or the Roundheads. Both father and son displayed unbounded loyalty, although professing the Roman Catholic faith. Had they, like many other noble families, adopted the policy of taking opposite courses, the family might eventually have retained estates which were forfeited when the King was deposed, and were principally enjoyed by Cromwell. Raglan Castle was demolished, all that could be carried away was sold, the strong tower or citadel was partially blown up, its ditch left dry, and all that could be most readily spoiled was mutilated, even to the marble and alabaster monuments in Raglan Church, raised to the memory of ancestors of the family. Such ruthless destruction and pillage has failed, however, to obliterate the towers, walls, arches, chambers, and numerous vaults of that once princely residence. From the year 1601 to 1641, (forty years of his life) was a period to which he refers as his "Golden Age" in the dedication of his "Century." While that from 1641 to 1647-8, (when he fled from Ireland to France,) was the most exciting, exhausting, and disastrous of his whole existence, and closed with utter ruin to himself and his family. He had then living his second wife, Henry, his son and heir, and two daughters. The family town mansion, Worcester House in the Strand, partly used as a State Paper Office, was eventually granted to the Marchioness of Worcester for her residence. The wearisomeness and distress attendant on his residence as a refugee in France during four years, was embittered by above two years imprisonment in the Tower, the result of his venturing to revisit London while proscribed by the Parliament as "an enemy and traitor to the Commonwealth," all such being threatened that they shall "die without mercy, whenever they shall be found within the limits of this nation." Burton, in his interesting Diary of Oliver Cromwell's Parliament, says in reference to the case of the Marquis on this occasion:--"It was urged he was an old man, had lain long in prison, and the small-pox then raging under the same roof where he lay; and he had not, as was said, done any actions of hostility, but only as a soldier; and in that capacity had always shown civilities to the English prisoners and Protestants. It was therefore ordered that he should be bailed out of prison." He was probably then about fifty-three years of age, but so harassed and so worn down by fatigue that he might well appear to be a prematurely "old man." He was not, however, too old to write his "Century" in 1655, and to re-write and publish it in 1663; to apply for and obtain an Act of Parliament for his great invention of