deep. 
  A fate more dismal, and superior ills
  Hang o’er his head devoted.  When the moon,
  Closing her monthly round, returns again
  To glad the night; or when full orbed she shines
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  High in the vault of heaven; the lurking pest
  Begins the dire assault.  The poisonous foam,
  Through the deep wound instilled with hostile rage,
  And all its fiery particles saline,
  Invades the arterial fluid; whose red waves
  Tempestuous heave, and their cohesion broke,
  Fermenting boil; intestine war ensues,
  And order to confusion turns embroiled. 
  Now the distended vessels scarce contain
  The wild uproar, but press each weaker part,
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  Unable to resist:  the tender brain
  And stomach suffer most; convulsions shake
  His trembling nerves, and wandering pungent pains
  Pinch sore the sleepless wretch; his fluttering pulse
  Oft intermits; pensive, and sad, he mourns
  His cruel fate, and to his weeping friends
  Laments in vain; to hasty anger prone,
  Resents each slight offence, walks with quick step,
  And wildly stares; at last with boundless sway
  The tyrant frenzy reigns.  For as the dog
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  (Whose fatal bite conveyed the infectious bane)
  Raving he foams, and howls, and barks, and bites. 
  Like agitations in his boiling blood
  Present like species to his troubled mind;
  His nature, and his actions all canine. 
  So as (old Homer sung) the associates wild
  Of wandering Ithacus, by Circe’s charms
  To swine transformed, ran grunting through the groves. 
  Dreadful example to a wicked world! 
  See there distressed he lies! parched up with thirst,
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  But dares not drink.  Till now at last his soul
  Trembling escapes, her noisome dungeon leaves,
  And to some purer region wings away. 
     One labour yet remains, celestial Maid! 
  Another element demands thy song. 
  No more o’er craggy steeps, through coverts thick
  With pointed thorn, and briers intricate,
  Urge on with horn and voice the painful pack
  But skim with wanton wing the irriguous vale,
  Where winding streams amid the flowery meads
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  Perpetual glide along; and undermine
  The caverned banks, by the tenacious roots
  Of hoary willows arched; gloomy retreat
  Of the bright scaly kind; where they at will,
  On the green watery reed their pasture graze,
  Suck the moist soil, or slumber at their ease,
  Rocked by the restless brook, that draws aslope
  Its humid train, and laves their dark abodes. 
  Where rages not oppression?  Where, alas! 
  Is innocence secure?  Rapine and spoil
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  Haunt even the lowest deeps; seas have their sharks,
  Rivers and ponds inclose the ravenous pike;
  He in his turn becomes a prey; on him
  The amphibious otter feasts.  Just is his fate
  Deserved; but tyrants know no bounds;