It was eight o'clock before I reached my lodgings. Although fatigued by the day's exertions, I again resumed the reading of Roscoe's "Leo X.," and had nearly finished seventy-three pages, when the clock on St. Martin's Church apprised me that it was two. He who escapes from slavery at the age of twenty years, without any education, as did the writer of this letter, must read when others are asleep, if he would catch up with the rest of the world. "To be wise," says Pope, "is but to know how little can be known." The true searcher after truth and knowledge is always like a child; although gaining strength from year to year, he still "learns to labour and to wait." The field of labour is ever expanding before him, reminding him that he has yet more to learn; teaching him that he is nothing more than a child in knowledge, and inviting him onward with a thousand varied charms. The son may take possession of the father's goods at his death, but he cannot inherit with the property the father's cultivated mind. He may put on the father's old coat, but that is all: the immortal mind of the first wearer has gone to the tomb. Property may be bequeathed, but knowledge cannot. Then let him who would be useful in his day and generation be up and doing. Like the Chinese student who learned perseverance from the woman whom he saw trying to rub a crow-bar into a needle, so should we take the experience of the past to lighten our feet through the paths of the future. The next morning at ten, I was again at the door of the great building; was soon within its walls seeing what time would not allow of the previous day. I spent some hours in looking through glass cases, viewing specimens of minerals, such as can scarcely be found in any place out of the British Museum. During this day I did not fail to visit the great Library. It is a spacious room, surrounded with large glass cases filled with volumes, whose very look tells you that they are of age. Around, under the cornice, were arranged a number of old black-looking portraits, in all probability the authors of some of the works in the glass cases beneath. About the room were placed long tables, with stands for reading and writing, and around these were a number of men busily engaged in looking over some chosen author. Old men with grey hairs, young men with mustaches--some in cloth, others in fustian, indicating that men of different rank can meet here. Not a single word was spoken during my stay, all appearing to enjoy the silence that reigned throughout the great room. This is indeed a retreat from the world. No one inquires who the man is who is at his side, and each pursues in silence his own researches. The racing of pens over the sheets of paper was all that disturbed the stillness of the occasion.