Does "The Index" ever come up again in the later

[happynow]

I just finished watching Season 4 but I had to watch it out of order. My last episode was 410 The Index and I was wondering if it ever came up again later on in season four because I can't remember if it did. Does Sloane or Jack ever tell anyone else what they found on the index?

 

[verdantheart]

Yes, it comes up, but they never reveal the particular thing that Jack and Sloane were looking for.

 

[happynow]

^ do you know which episode it comes up in? I can't believe the episodes are all in a blur in my mind when I just watched them last week. Too much action to sort out, lol.

 

[verdantheart]

It shows up in episodes 21 and 22, the last two of the season.

 

[happynow]

^ thanks