Final answer:
The rhyme scheme of the given lines about Hercules is ABAB, where 'power' rhymes with 'flower' and 'fame' rhymes with 'same'.
Step-by-step explanation:
The rhyme scheme of the given lines describing Hercules is ABAB. In the lines:
- For Hercules, a visitor of sovereign power,
- his labours sing his praise and lasting fame.
- Who in his time was human strength in flower.
- He slew a lion and he skinned the same.
'Power' rhymes with 'flower' (lines 1 and 3), and 'fame' rhymes with 'same' (lines 2 and 4). Hence, the pattern of rhyme is ABAB.