That book is a great reference - it's one of my favorites. The drawings help to illustrate things that are hard to distinguish in photos.
But keep in mind that the drawings in the book are based on a model of the 36-gun British frigate Melampus. While a lot of the rig is very similar to the Constitution, it is not exactly the same.
For example, the fore and main lower futtock shrouds on the Constitution are anchored by Bentinck shrouds running down to the opposite sides of the spar deck, not the stave and catharpin set up shown in the book. The Melampus also does not have a solid spar deck like the Constitution and that leads to some other differences, such as with the pin rail configuration.
But all-in-all it's a very useful book.
Mark