[T]here has grown up a system of annotation neither intelligent nor considerate. Instead of putting notes at the foot of pages, it jumbles them in a vast dump at the back of the book. No normal reader much enjoys perusing a volume in two places at once; further, though he may find his way, if he has patience, from the text to note 345, he may have a tedious search to find his way from note 345 to the relevant passage of text. For this type of author has seldom the sense, or the courtesy, to prefix his notes with the page-numbers concerned.
F. L. Lucas, Style: The Art of Writing Well. (ISBN: 9780865475878) p.111