Peter Mills was — er — kind enough to give me a book by this title; the section from page 51 is entitled “BRAIN SURGERY for pleasure or profit” and includes a tool-list plus a drawing of a bisected head with electrical pliers deftly removing a slice of brain.
There are also detailed instructions for how to operate taps etc antiseptically (including a tool built from a wire coat-hanger), how to practice tying ligatures on macaroni and so on.
The first real step (illustrated on the abbreviated page labelled “METHOD”) involves a serrated chisel and a hammer.
The book includes other sections, e.g. on “Breeding COMBAT Hamsters”, it’s a pity that I can’t reasonably scan and post it. (-: