Faraday now began work at his trade of book-binding for a Frenchman in London, who, having no children, promised him the business, if he would remain with him always; but the employer's temper was so hasty that the position became almost unbearable. The young man was growing depressed in spirits, when one night, just as he was preparing for bed, a loud knock on the door startled him. On looking out of the window, he espied a grand carriage, with a footman in livery, who left a note. This was a request from Sir Humphry Davy to see him in the morning. Was there, then, the possibility of a place in the Royal Institution? Between conflicting hopes and fears, he went to sleep, and in the morning hastened to see the great chemist. The result was an engagement at six dollars a week, with two rooms at the top of the house! He was to clean the instruments, move them to and from the lecture-room, and in all ways to make himself useful. Now he could say good-by to book-binding; and, though six dollars a week was not a munificent sum, yet he could actually handle beautiful instruments,--not copper half-pence and bits of zinc,--and could listen to stimulating lectures. And now work began in earnest. He joined the City Philosophical Society, an association of thirty or forty persons in moderate circumstances, who met each Wednesday evening, one of their number giving a lecture. Then a half dozen friends came together once a week to read, criticise, and correct each other in pronunciation and conversation. How eagerly would such a young man have attended college! There was no opportunity to hear polished talk in elegant drawing-rooms, no chance to improve manners in so-called "best society." He did what is in the power of everybody,--he educated himself. Did he not need recreation after the hard day's work? Every person has to make his choice. Amusements do not make scholars: pleasure and knowledge do not go hand in hand. Faraday chose the topmost story of the Royal Institution, and books for companions, and immortal fame was the result. The experiments with Davy soon became absorbing, and often dangerous. Now they extracted sugar from beet-root; now they treated chloride of nitrogen, wearing masks of glass upon their faces, which, notwithstanding, were sometimes badly cut by the explosions. Seven months after this, Sir Humphry decided to travel upon the Continent, and asked Faraday to be his amanuensis. This was a rare opportunity for the young assistant. For a year and a half they visited France, Switzerland, Italy, and Germany, climbing Vesuvius, enjoying art-galleries, and meeting the learned and famous of the age. The journey had its disagreeable side; for Faraday was made more or less a servant by Davy and his sometimes inconsiderate wife; but it had great and lasting advantages for one who had never been but twelve miles from London.