According to the astronomers of the time, however, the old Ptolemaic system, in the shape in which it was explained by the Danish astronomer Tycho Brahe, who was acknowledged as the greatest of European astronomers, appeared to give quite a satisfactory explanation of the {35} phenomena observed. The English philosopher, Lord Bacon, more than a decade after Galileo's announcement, considered that there were certain phenomena in nature contrary to the Copernican theory, and so he rejected it altogether. This was within a few years of the condemnation by the Congregation at Rome. As pointed out by Father Heinzle, S.J., in his article on Galileo in the "Catholic World" for 1887, "science was so far from determining the question of the truth or falsity of either the Ptolemaic or the Copernican system that shortly before 1633, the year of Galileo's condemnation, a number of savants, such as Fromond in Louvain, Morin in Paris, Berigard in Pisa, Bartolinus in Copenhagen, and Scheiner in Rome, wrote against Copernicanism." As we have said, Copernicus's book was not condemned unconditionally by the Roman authorities, but only until it should be corrected. This assured protection to the principal part of the work, and the warning issued by the Roman Congregation in the year 1820 particularizes the details that had to be corrected. It is interesting to note that whenever Copernicus is spoken of in this Monitum it is always in flattering terms as a "noble astrologer"--the word astrologer having at that time no unworthy meaning. The whole work is praised and its scientific quality acknowledged. The passages requiring correction were not many. In the first book, at the beginning of the {36} fifth chapter, Copernicus made the declaration that "the immobility of the earth was not a decided question, but was still open to discussion." In place of these words it was suggested that the following should be inserted: "In order to explain the apparent motions of the celestial bodies, it is a matter of indifference whether we admit that the earth occupies a place in the middle of the heavens or not." In the eighth chapter of the first book, Copernicus said: "Why, then, this repugnance to concede to our globe its own movement as natural to it as is its spherical form? Why prefer to make the whole heavens revolve around it, with the great danger of disturbance that would result, instead of explaining all these apparent movements of the heavenly bodies by the real rotation of the earth, according to the words of AEneas, 'We are carried from the port, and the land and the cities recede'?" This passage was to be modified as follows: "Why not, then, admit a certain mobility of the earth corresponding to its form, since the whole universe of which we know the bounds is moved, producing appearances which recall to the mind the well-known saying of AEneas in Virgil, 'The land and the cities recede'?"