There is a proper season for making attacks with fire, and special days for starting a conflagration. 699

The proper season is when the weather is very dry; the special days are those when the moon is in the constellations of the Sieve, the Wall, the Wing or the Crossbar; 700 for these four are all days of rising wind. 701

In attacking with fire, one should be prepared to meet five possible developments: 702