Meanings of occult arts in English

You, who have built a laboratory; you, who are an amateur professor of the occult arts of chemistry- aseekerafter the Elixir of Life.

The sinister Queen Catherine de Medici (she who had the Protestants massacred on St. Bartholomew's Eve) was noted for her interest in the occult arts.

The "Adepts" in Occult Arts had better keep silence when confronted with the "A.C.S.

"Have you any idea of my major concern in the occult arts?"

"Are you a practitioner of the occult arts?" Edward asked.