just > true, correct memory > recollection; historical record

6 Sith none, that breathes living air, does know

Sith > Since living > refreshing; vital, giving life

7 Where is that happy land of Faery, 8 Which I so much do vaunt, yet nowhere show,

vaunt > reveal, display, make a show of; praise

9 But vouch antiquities, which nobody can know.

vouch > cite; affirm as true, certify antiquities > ancient records (cf. 100.2:4)

200.2

But let that man with better sence aduize,
2 That of the world least part to vs is red:
And dayly how through hardy enterprize,
4 Many great Regions are discouered,
Which to late age were neuer mentioned.
6 Who euer heard of th'Indian Peru?
Or who in venturous vessell measured
8 The +Amazons+ huge riuer now found trew?
Or fruitfullest Virginia who did euer vew?

8 Amazons > Amarons 1590; Amazon FE