We will also say, how all sciences which have to do with the composition of substances, have agreed to place in a separate category all those appreciable to the taste; and how travellers have followed in the same pathway when they placed before us substances nature apparently never meant us to see. We will follow chemistry to the very moment when it penetrated our subterraneous laboratories to enlighten our PREPARERS, to establish principles, to create methods and to unveil causes which had remained occult. In fine we will see by the combined power of time and experience that a new science has all at once appeared, which feeds, nourishes, restores, preserves, persuades, consoles, and not content with strewing handsfull of flowers over the individual, contributes much to the power and prosperity of empires. If, amid the grave lucubrations, a piquante anecdote, or an agreeable reminiscence of a stormy life drips from my pen, we will let it remain to enable the attention to rest for a moment, so that our readers, the number of whom does not alarm us, may have time to breathe. We would like to chat with them. If they be men we know they are indulgent as they are well informed. If women they must be charming. [Footnote: Here the Professor, full of his subject, suffers his hand to fall and rises to the seventh heaven. He ascends the torrent of ages, and takes from their cradle all sciences, the object of which is the gratification of taste. He follows their progress through the night of time and seeing that in the pleasures they procure us, early centures were not so great as those which followed them: he takes his lyre and sings in the Dorian style the elegy which will be found among the varieties at the end of the volume.] MEDITATION III. GASTRONOMY. ORIGIN OF SCIENCES. THE sciences are not like Minerva who started ready armed from the brain of Jupiter. They are children of time and are formed insensibly by the collection of the methods pointed out by experience, and at a later day by the principles deduced from the combination of these methods. Thus old men, the prudence of whom caused them to be called to the bed-side of invalids, whose compassion taught to cure wounds, were the first physicians. The shepherds of Egypt, who observed that certain stars after the lapse of a certain period of time met in the heavens, were the first astronomers. The person who first uttered in simple language the truth, 2 + 2 = 4 created mathematics, that mighty science which really placed man on the throne of the universe. In the course of the last sixty years, many new sciences have taken their place in the category of our knowledge, among which is stereotomy, descriptive geometry, and the chemistry of gas.