3 Long fostered in the filth of Lerna lake, 4 Whose many heads, out-budding ever new, 5 Did breed him endless labour to subdue:

breed > engender

6 But this same monster much more ugly was; 7 For seven great heads out of his body grew,

seven great heads > (Referring to Rev. 13.1, and perhaps also to the seven hills of Rome)

8 An iron breast, and back of scaly brass, 9 And, all imbrued in blood, his eyes did shine as glass.

imbrued > stained, soaked

107.18

His tayle was stretched out in wondrous length,
2 That to the house of heauenly gods it raught,
And with extorted powre, and borrow'd strength,
4 The euer-burning lamps from thence it +brought+,
And prowdly threw to ground, as things of +nought+;
6 And vnderneath his filthy feet did tread
The sacred things, and holy heasts foretaught.
8 Vpon this dreadfull Beast with seuenfold head
He set the false Duessa, for more aw and dread.

4 brought > braught 1590 5 nought > naught 1590

1 His tail was stretched out in wondrous length, 2 That to the house of heavenly gods it raught,