1. Open Charles, R. H. Pseudepigrapha of the Old Testament (Apparatuses). Oxford: Clarendon Press, 1913. to see if it is a representative sample of apparatuses and if it has a useful table of abbreviations used in the apparatuses.
2. Discover this starts at Chapter 3 of Ezra IV with no front material ... nada.
3. Open Library and filter by title:"Pseudepigrapha of the Old Testament" identifying 3 other resources with the same author and date:
- Charles, Robert Henry, ed. Pseudepigrapha of the Old Testament. Oxford: Clarendon Press, 1913.
- Charles, Robert Henry, ed. Commentary on the Pseudepigrapha of the Old Testament. Oxford: Clarendon Press, 1913.
- Charles, R. H. Index to the Apocrypha and Pseudepigrapha of the Old Testament. Oxford: Clarendon Press, 1913.
4. Open the 4 portions of the dead tree books (2 volumes) in probable sequence for use.
5. Go to first entry of apparatuses to orient oneself "1 a–a For the lacuna here see the discussion on the previous page." ... hmmm that's useful since I am on the first page of the resource ... open TOC or make a guess ... which resource has the previous page ... I'll bet it's NOT the index.
6. Okay, let's think this through .. switch the reference box to page number. Observe that Ezra IV is the only apparatuses ... open TOC on commentary ... check 1st and last page numbers for the commentary ... I guessed right .. text & commentary are both Volume 2 page 561 and the apparatuses in Volume 2 page 562 ... well, I figure out the lacuna later ... hey I see it 1 is the verse number a-a means the text between the superscript "a's" ... the resource abbreviations are at the end of the IV Ezra introductory material ...
SUGGESTION: Faithlife, when you break a resource apart PLEASE give us a simple icon (think equivalent resources, parallel resources ..) to put the book back together in sequence. Breaking it apart to make index and search field functions work makes sense ... but it has to work for the poor person trying to use/read it.