Ink blotches on the right margin. Bleed-through from reverse page visible at the top.

PRELIMINARY NOTES.

Seven manuscripts were used to correct the two books on construction, which lead the collection.

1. Lipsiensis A Leipzig Manuscript A: Paper, written in the year 1426, very difficult to read due to countless scribal abbreviations. It does not contain the Greek. It ends with the words "student doctrinae" they study learning (Book XVIII, Chapter 20, § 157). Preserved in the University Library of Leipzig.

2. Lipsiensis B Leipzig Manuscript B: Parchment, mutilated, very recent. Lacks the Greek. Preserved in the Public Library of the Leipzig Senate.

3. Erlangensis Erlangen Manuscript: Parchment, very recent, lacks Greek...