Dr. Morinus received a medical degree from the University of Avignon in 1613. Thirty years later, on March 30 1634, in the great hall of the arsenal in Paris, he demonstrated his “Science of Longitudes” to an assemblage of 300 mathematicians, astronomers, and members of the French Court. After six hours of interrogation, they approved his survey. He held that the Lords of the Ascendant and Midheaven were more important than previously believed.