Sentence:  Finding that I could produce obedience to my silent will in somnambulists to the extent of inducing some to lift the hand to either cheek— ... I resolved to try if I could influence some of my patients to obey me in the performance of a train of actions. This was education, and this I take it requires the high order of patience to bring to the degree of perfection which we have seen exhibited in the <WSD>oneiromancie</WSD> of the cook-maid Mlle. Isa Prudence, whose mesmeric education does so much credit to the charming Mlle. Herminie Laurant and her rotund parent. 
Meaning of the word marked with <WSD> tags:  An act of such divination or dream-interpretation.