Giovanni Antonio Baranzano (1590-1622) defended the Copernican system in this, his most important work. 'This book was not well received by the Church ... and Baranzano was called to Milan by the archbishop to make corrections. It is of some interest that he took with him on this occasion a letter written by his good friend Francis de Sales, testifying to his merits. Indeed, Baranzano clearly had a capacity for progressive thought; only his membership in a religious order and the ambient scholastic mentality made him turn back. Being obliged to withdraw his assertions, he wrote a small tract in which he presented his excuses for having departed ex abundantia cordis of the Scriptures. This was entitled Nova de motu terrae Copernicolo iuxta Summi Pontificis mentem disputatio (1618) and was appened, where possible, to the original Uranoscopia (DSB).