arcanist

The porcelain manufactory likewise entertains, excepting the modellers and arcanists, none but russian workmen […]

[Catechumens] had Prayers for themselves, but were not admitted to hear the Prayers of the Faithful, which were peculiar to the Celebration of the Eucharist, from which Catechumens were excluded, But all this was, and might be done, without favouring in the least the vain Pretences of the Modern Arcanists: For in all this there was no Design to conceal such Mysteries as the Worship of Saints, and Angels, and Images, from the Knowledge of the Catechumens;