i. Elementals formed unconsciously. It has already been explained that the elemental essence which surroivnds us on every side is in all its numberless,varieties singularly susceptible to the influence of human thought. The action of the mere casual wanderingMiought upon it, causing it to burst into a cloud of rapidly-moving, evamfScent forms, has already been, described ; we have now to note ]^ow it is affected, when the human mind formulates a definite, purposeful thought or wish. „ The effect produced is of the most striking nature. The thought seizes upon the plastic essence, and moulds it instantly into a living being of appropriate form—a being which when once