house at Arcetri had become dark and lonely. The wife of Michelangelo, her three daughters and a son, had all died of the plague. It was doubly dark, for Galileo had become hopelessly blind, "so that this heaven, this earth, this universe, which I by my marvellous discoveries and clear demonstrations had enlarged a hundred thousand times beyond the belief of the wise men of bygone ages, henceforward for me is shrunk into such a small space as is filled by my own bodily sensations."
His last work was a short treatise on the secondary light of the moon. "I am obliged now," he said, sadly, "to have recourse to other hands and other pens than mine since my sad loss of sight. This, of course, occasions great loss of time, particularly now that my memory is impaired by advanced age; so that in placing my thoughts on paper, many and many a time I am forced to have the foregoing sentences read to me before I can tell what ought to follow; else I should repeat the same thing over and over."
He had planned other work, but death came on the evening of January 8, 1642, eight years after Celeste left him. His beloved pupils, Torricelli and Viviani, and his son Vincenzo, stood by his bedside.
He desired to be buried in the family vault of the Galilei in Santa Croce, at Florence, and the city at once voted a public funeral and three thousand crowns for a marble mausoleum. But the church at Rome prevented, lest the pernicious doctrine that the earth moves, should thereby have confirmation. He was therefore buried in an obscure corner of Del Noviziato, a side chapel of Santa Croce.
A century later, March 12, 1737, in the presence of the learned men of Italy, with great ceremony, the bones of Galileo were removed to a new resting-place in Santa Croce, and buried with his beloved friend, Viviani. An imposing monument was erected over him. The truth finally triumphed, as it always does. The works of Galileo, in sixteen volumes, are no longer prohibited, as they were in his lifetime.
SIR ISAAC NEWTON
In the same year, 1642, in which Galileo, sad and blind, went away from the earth, Sir Isaac Newton came to make his home upon it.
He was born December 25, the only child of Isaac Newton and Hannah Ayscough. The father died at thirty-seven, a few months after his marriage, and the young wife, after the birth of her child, was both father and mother to the helpless infant. He was so frail that there seemed little probability that he could live to manhood, or even boyhood. Naturally, between mother and son there grew a most ardent affection, which neither time nor death could change.
The manor-house of Woolsthorpe in Colsterworth, Lincoln county, was a two-story stone building, owned for a century by the Newton family, and bringing a limited income from the little farm in connection with it. Here Isaac passed his childhood, going to the schools near by, and learning to read, write, and cipher.
At twelve, he was sent to the public school at Grantham, where he showed little taste for study, and managed easily to stand at the foot of his class. When he was the last in the lowermost form but one, the boy next above him, as they were going to school, gave Isaac a kick, which occasioned severe pain. Stirred with wrath, Isaac challenged the other boy to a fight. For this purpose, they repaired to a neighboring churchyard, where young Newton, though much the smaller and weaker of the two, pounded his antagonist till he was glad to come to any terms of submission.
He resolved now that this boy should no longer stand above him in scholarship, and with a new ambition and energy born of his insult, he soon rose to the highest place in the school. It was not idleness, probably, that made Newton a poor scholar, but his mind was absorbed with making saws, hammers, hatchets, and other tools.
He made a windmill and placed it on the top of his home, the wind putting it in motion. When there was no wind, a novel expedient was resorted to. A mouse, which was called "the miller," was trained to turn the windmill by walking on a tread wheel, with some corn just beyond his reach! All through life, he was exceedingly kind to animals, and could never tolerate shooting or hunting for sport. He objected to one of his nephews, when praised in his presence, "that he loved killing of birds," and this was sufficient to win his disesteem. It is probable, therefore, that the little mouse was kindly cared for by the young experimenter.
He also made a water clock, about four feet high, with a dial-plate at the top, with figures of the hours. The index was turned by a piece of wood, which either fell or rose by water dropping. Every morning the lad supplied his clock with the proper amount of water.
Besides these, he invented a four-wheeled carriage, which was moved with a handle by the person who sat in it. For his boy friends, he made lanterns of "crimpled paper" with a candle inside, to light them to school in the dark winter mornings, and paper kites of the best form and proportion. In dark nights he tied the lanterns to the tails of his kites, and ignorant people sometimes mistook them for comets!
On the manor-house at Woolsthorpe he carved sun-dials, which were visible a century later. He was a "sober, silent, and thinking lad," who was always hammering in his room, or making drawings with his pen and pencil, designing with charcoal on his walls, birds, animals, ships, and mathematical diagrams.
Mrs. Newton, the mother, had married again, after a singular courtship. "Mr. Smith, a neighboring clergyman, who had a very good estate, had lived a bachelor till he was pretty old, and, one of his parishioners advising him to marry, he said he did not know where to meet with a good wife. The man answered, 'The widow Newton is an extraordinary good woman.' 'But,' said Mr. Smith, 'how do I know she will have me, and I don't care to ask and be denied; but if you will go and ask her, I will pay you for your day's work.'
"He went accordingly. Her answer was, she would be advised by her brother Ayscough, upon which Mr. Smith sent the same person to Mr. Ayscough on the same errand, who, upon consulting with his sister, treated with Mr. Smith, who gave her son Isaac a parcel of land, one of the terms insisted upon by the widow if she married him."
Though for a time she was thus removed from Isaac, leaving him with his grandmother, on the death of Rev. Mr. Smith, she returned to the manor-house.
When Isaac had reached his fifteenth year, his mother, not seeming to think of any profession for her mechanical son, decided to make of him a farmer and grazier. On Saturdays, the market day at Grantham, she would send him with grain and other agricultural produce, in the care of an old and trusty servant. The boy had no taste for selling produce, and would hasten to the attic in the house of Mr. Clark, an apothecary, with whom he had boarded while at school, and there spend his hours in reading old books, till the time came for him to go home, the servant meantime having sold the vegetables.
Sometimes, however, the lad would not go as far as Grantham, but, seating himself beside a hedge along the road, would read some favorite author till the servant returned. When his mother sent him to watch the cattle, they enjoyed a neighbor's corn-field, while he enjoyed a book or whittled out water-wheels. It did not seem intentional disobedience toward a mother of whom he was very fond, but complete absorption in some other pursuit.
When he was sixteen he was greatly interested in finding the proper form of a body which would offer the least resistance when moving in a fluid. In a severe storm, to test the force of the gale, he jumped first in the direction in which the wind blew, and then in opposition to the wind, and after measuring the length of the leap in both directions, and comparing it with the length to which he could jump in a perfectly calm day, he was enabled to compute the force of the storm.
His mother soon found that her boy would not make a successful farmer, and sent him back to school at Grantham, to prepare for Trinity College, Cambridge, which he entered when he was nineteen.
It is probable that the time spent at Grantham was a happy time; for young Newton there met and, it is said, loved Miss Storey, sister of Dr. Storey, a physician near Colsterworth, and daughter of the apothecary's second wife. She was two or three years younger than Newton, a girl of attractive face and unusual talents. As his income as a Fellow was small, after leaving college, they did not marry, though his interest in her continued unabated through life. Though she was twice married, he never paid a visit to Woolsthorpe without going to see her, and liberally relieved her from little pecuniary embarrassments, when his own circumstances had become easy. How the world loves constancy; an affection which knows no change! That he would have been happier in those quiet years of study, even in his poverty, had he married, is probable; but that the