Summary

Portrait of Geoffrey Chaucer Geoffrey Chaucer Chaucer's Works, Volume 5 — Notes to the Canterbury Tales

The 'exaltation' of a planet is that sign in which it was believed to exert its greatest influence; and, in accordance with this, the old tables call Taurus the 'exaltation of the Moon,' and Libra the 'exaltation of Saturn.' These results, founded on no reasons, had to be remembered by sheer effort of memory, if remembered at all. I have no doubt, accordingly, that Chaucer (or his scribes) has made a mistake here, and that the reading should be 'Saturnes,' as proposed by Tyrwhitt.
Source: Gutenberg

Portrait of Geoffrey Chaucer Geoffrey Chaucer Chaucer's Works, Volume 5 — Notes to the Canterbury Tales

In fact, he and Tyrwhitt have unconsciously given us the view entertained, not by Chaucer, but by unthinking readers of the present age; a view which is not expressed, and was probably not intended. At the modern Stratford we may find Parisian French inefficiently taught; but at the ancient Stratford, the very important Anglo-French was taught efficiently enough. There is no parallel between the cases, nor any such jest as the modern journalist is never weary of, being encouraged by critics who ought to be more careful.
Source: Gutenberg

Portrait of Geoffrey Chaucer Geoffrey Chaucer Chaucer's Works, Volume 5 — Notes to the Canterbury Tales

It is easy to see how the various metals were made to answer to the seven planets. Gold, the chief of metals and yellow, of course answered to the sun; and similarly silver, to the paler moon. Mercury, the swiftest planet, must be the shifty quicksilver; Saturn, the slowest, of cold and dull influence, must be lead. The etymology of copper suggested the connexion with the Cyprian Venus. This left but two metals, iron and tin, to be adjusted; iron was suggestive of Mars, the god of war, leaving tin to Jupiter.
Source: Gutenberg

Get perspective with Kwize: daily news enlightened by great literature