complete circle; a very curiously complicated and exceedingly difficult specimen of these coils may be seen engraved; in the midst of it are the following words: — Leonardus Vinci Academia. Among these models and drawings there is one, hy means of which Leonardo often sought to prove to the different citizens—many of them men of great discernment—who then governEd. Flor.nce, that the church of San (jiovanni in that city could he raised, and steps placed beneath it, without injury to the edifice: he supported his assertions with reasons so persuasive, that while he spoke the undertaking seemed feasible, although every one of his hearers, when he had departed, could see for himself that such a thing was impossible. In conversation Leonardo wms indeed so pleasing that he won the hearts of all hearers, and though possessing so small a patrimony only that it might almost be called nothing, while he yet worked very little, he still constantly kept many servants and horses, taking extraordinary delight in the latter: he was indeed fond of all animals, ever treating them with infinite kindness and consideration; as a proof of this it is related, that when he passed places where birds were sold, he would frequently take them from their cages, and having paid the price demanded for them by the sellers, would then let them fly into the air, thus restoring to them the liberty they had lost. Leonardo was in all things so highly favoured by nature, that to whatever he turned his thoughts, mind, and spirit, he gave proof in all of such admirable power and perfection, that whatever he did bore an impress of harmony, truthfulness, goodness, sweetness and grace, wherein no other man could ever equal him.
Leonardo, with his profound intelligence of art, commenced various undertakings, many of which he never completed, because it appeared to him that the hand could never give its due perfection to the object or purpose which he had in his thoughts, or beheld in his imagination; seeing that in his mind he frequently formed the idea of some difficult enterprise, so subtle and so wonderful that, by means of hands, liowever excellent or able, the full reality could never be worthily executed and entirely realized. His conceptions were varied to infinity; philosophizing over natural objects; among others, he set himself to investigate the properties of plants, to make observations on the heavenly bodies, to follow
