In the OP’s post, they mention that they previously produced a number of quotes from said essay.
That link points to http://lesswrong.com/lw/57/the_sacred_mundane/3jj#comments where Yvain does extensively quote Crowley.
That done, it is trivial to run a Google search on substrings, like: http://www.google.com/search?q=%22In+the+course+of+our+concentration+we+noticed+that+the+contents%22
Google instantly turns up at least 3 citations to Crowley’s Magick: Book 4.
Thank you :)
In the OP’s post, they mention that they previously produced a number of quotes from said essay.
That link points to http://lesswrong.com/lw/57/the_sacred_mundane/3jj#comments where Yvain does extensively quote Crowley.
That done, it is trivial to run a Google search on substrings, like: http://www.google.com/search?q=%22In+the+course+of+our+concentration+we+noticed+that+the+contents%22
Google instantly turns up at least 3 citations to Crowley’s Magick: Book 4.
Thank you :)