NOw follow those which are Ignita mixta, and lesse* 1.1 pure; coming so to passe when the Exhalation, through the admixtion of some vapour, is more slimie, grosse, and impure: For those Meteors already described were meerly Fumes without the admixture of Vapours; unlesse it might be some little in one of a glutinous na∣ture or composition. Now these Ignita mixta are usu∣ally divided into two sorts: for they are either such as continue long; or else such as are but for a little while.
Those that continue long, are Comets or blazing starres.
And a Comet is a fierie Meteor, whose matter is an* 1.2 Exhalation hot and drie, fat and clammie, drawn by ver∣tue of the heavenly bodies into the highest part of the aire (and sometimes into the starrie Region) where it is closely conglutinated into a great lump, by reason of sup∣ply that it hath from below, so long as there is a working to exhale it: and being thus compacted and exhaled, it is set on fire in convenient time by the excessive heat of the place where it resteth. Sometimes it continues burning