With regard to adding annotations at the end of the book, you may safely do it in this way.
In short, all you have to do is to manage to quote these names, or refer to these stories I have mentioned, and leave it to me to insert the annotations and quotations, and I swear by all that’s good to fill your margins and use up four sheets at the end of the book.
Next, to prove yourself a man of erudition in polite literature and cosmography, manage that the river Tagus shall be named in your story, and there you are at once with another famous annotation, setting forth—The river Tagus was so called after a King of Spain: it has its source in such and such a place and falls into the ocean, kissing the walls of the famous city of Lisbon, and it is a common belief that it has golden sands, etc. If you should have anything to do with robbers, I…
…in the silence of oblivion, coming out now with all my years upon my back, and with a book as dry as a rush, devoid of invention, meagre in style, poor in thoughts, wholly wanting in learning and wisdom, without quotations in the margin or annotations at the end, after the fashion of other books I see, which, though all fables and profanity, are so full of maxims from Aristotle, and Plato, and the whole herd of philosophers, that they fill the readers with amazement and convince them…
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The book has a fabulous annotated bibliography.
The aide summarizes and annotates prospective legislation.