See the marginal references.

And to Caleb ... This paragraph also occurs in Judges 1:10-15, with some slight variations. Which is its original place? In Judges…

And Caleb drove thence the three sons of Anak
Some think this was after the death of Joshua, and is here inserted by…

Achsah obtained some land by Caleb's free grant. He gave her a south land—land indeed, but a south land, dry and likely to be parched. She obtained…