Well fortifi'd then by these fresh supplies,
More bravely they renew their enterprize:
And one-while th' upper hand (with honor) getting,
Another-while disgracefully retreating,
Our lower Aire they tosse in sundry sort,
As weak or strong their matter doth comport.
This lasts not long; because the heat and cold,
Equall in force and fortune, equall bold
In these assaults; to end this sudden brall,
Th' one stops their mounting, th' other stayes their fall: