Manly Palmer Hall [P.R.S.] MS. 233.
53 folios. 206 x 162mm. 18th Century.

[This is included in the Bacstrom Collection MS. 102, Vol. 6.]
[Baro Urbigerus.] Aphorismi Urbigerani or certain Rules clearly demonstrating the three infallible Ways of preparing the Grand Elixir of the Philosophers.