32 The notebooks were not published in Leonardo's lifetime.
12 Working life, change change source In 1506, Leonardo went back to Milan with his pupils, and lived in his own house in Porta Orientale.
It was going to be the biggest bronze horse that had been made for more than a thousand years.The weather and its phenomena.There is a page with drawings and writing about the human heart and a page about the womb and the fetus.He dissected and drew the human skull and cross-sections of the brain, transversal, sagittal, and frontal.Leonardo also produced a map of Chiana Valley in Tuscany, which he surveyed, without the benefit of modern equipment, by pacing the distances.He wanted to know how everything worked.A brilliant child, he early showed talent for mathematics and music, then at the age of 17 was apprenticed in Florence to one Andrea del Verrochio, a master artist and goldsmith.He studied by looking at things in the world around him.Other studies show hands, faces, drapery, plants, horses and babies.4 His continued investigations in this field occupied many pages of notes, each dealing systematically with a particular aspect of anatomy.They show a scene of the Virgin Mary and the child Jesus in a rocky mysterious landscape.12 But Leonardo had not used proper fresco for the painting.2, many people think that Leonardo was one of the greatest painters of all time.
11 tagliare unghie piedi neonato 16 Giorgio Vasari tells an interesting story from this time of Leonardo's life.

Smith, University of Chicago Press, 1963; reprinted New York: Dover Publications 1979.
The paintings are both called the Virgin of the Rocks.
16 The Last Supper change change source The Last Supper (1498).