This is the FEAST OF BUKAKO - a book of 36 spells created by Brendan S of the blog Necropraxis.
These are leveless spells intended to be cast by sorcerers or magicians of any level, with much of the limiting factor coming from the context and effect of the spell itself.
In use, they would fit best with a general old-school D&D framework.
Together these spells form a complete list of all of those... [click here for more]