It is the custom, I am told, for the Grand Duke and the nobles of Tuscany to join in this festival, and breakfast in the open air with the people. The late death of the young and beautiful Grand-Duchess has prevented it this year, and the merry-makings are diminished of one half their interest. I should not have imagined it, however, without the information. I took a long stroll among the tents this morning, with two ladies from Albany, old friends, whom I have encountered accidentally in Florence. The scenes were peculiar and perfectly Italian. Everything was done fantastically and tastefully. The tables were set about the knolls, the bonnets and shawls hung upon the trees, and the dark-eyed men and girls, with their expressive faces full of enjoyment, leaned around upon the grass, with the children playing among them, in innumerable little parties, dispersed as if it had been managed by a painter. At every few steps a long embowered alley stretched off to the right or left, with strolling groups scattered as far as the eye could see under the trees, the red ribands and bright colored costumes contrasting gayly with the foliage of every tint, from the dusky leaf of the olive to the bright soft green of the acacia. Wherever there was a circular opening there were tents just in the edges of the wood, the white festoons of the cloth hung from the limbs, and tables spread under them, with their antique-looking Tuscan pitchers wreathed with vines, and tables spread with broad green leaves, making the prettiest cool covering that could be conceived. I have not come up to the reality in this description, and yet, on reading it, it sounds half a fiction. One must be here to feel how little language can convey an idea of this "garden of the world." The evening was the fashionable hour, and, with the addition of Mr. Greenough, the sculptor, to our party, we drove to the Cascine about an hour before sunset to see the equipages, and enjoy the close of the festival. The drives intersect these beautiful grounds irregularly in every direction, and the spectacle was even more brilliant than in the morning. The nobility and the gay world of Florence flew past us, in their showy carriages of every description, the distinguished occupants differing in but one respect from well-bred people of other countries--_they looked happy_. If I had been lying on the grass, an Italian peasant, with my kinsmen and friends, I should not have felt that among the hundreds who were rolling past me, richer and better born, there was one face that looked on me contemptuously or condescendingly. I was very much struck with the universal air of enjoyment and natural exhilaration. One scarce felt like a stranger in such a happy-looking crowd.