Rob has a good point -- consider, for instance, the importance of necromantic magic to healing magic. And as it was an academic effort, it is unlikely to have "controversial" spells censored, especially if they are in the prerequisite chain for less controversial magics, or if they are necessary to demonstrate particular principles.
And you raise, perhaps inadvertently, another good point with your mention of Thaumaturgy. Perhaps I should simply define the contents of the Grimoire simply as "a broad selection of spells or formulae suitable to beginner through mid-level practitioners of the magic system you have chosen to implement in your campaign".
-- Bob
---------
Then the horns kicked in...
...and my shoes began to squeak.
And you raise, perhaps inadvertently, another good point with your mention of Thaumaturgy. Perhaps I should simply define the contents of the Grimoire simply as "a broad selection of spells or formulae suitable to beginner through mid-level practitioners of the magic system you have chosen to implement in your campaign".
-- Bob
---------
Then the horns kicked in...
...and my shoes began to squeak.