Most columns are further divided into A, B, C or D, representing divisions down the columns. Since a column of text is displayed as a full screen, column numbers have been added to the text to show where the divisions in the original printed edition occur. In addition, each document has a column number reference. The references are standardized and changes of rendition are ignored. There is no online index for these references.
Greek text is incorporated into the Latin text.
Clicking on the icon will retrieve the image. One drawback of the PLD web version is that Greek text, Hebrew text, and image files are not searchable. Finally, the current web version does not offer features to save search strategies, save results, and e-mail or download results.