If you have access to O'Brien's Corpus Genealogiarum Hiberniae, the section roughly from 129 a 38 to 130 a 39 corresponds to Lec 99. You might spot what you are looking for there.
> Sent: Tuesday, September 18, 2018 at 2:16 PM
> From: "Tom Smith" <[log in to unmask]>
> To: [log in to unmask]
> Subject: Re: [OLD-IRISH-L] Lec. 99
> The Hogan reference 99 is actually page 39 on ISOS but there is an old pagination 99 at the bottom which Hogan used. A bit confusing!