The cases of imitation referred to, and others of the same class, are the results of the _imitative mechanic power_ of the individual, brought out by the abnormal magnetic state existing at the time. For instance, if the individual has time and tune--the faculty of music within lying undeveloped--it may be brought out, and made to act, by the effects of magnetism. Last winter we listened to a lecture delivered in Newark, New Jersey, by the Rev. Mr. Harris, from New York city. He stated that there was a lady in Providence, who, by the agency of spirits, produced musical compositions equal to the productions of the best masters, as Haydn, Beethoven, and others, and that a volume of these pieces were soon to be issued from the press. And although the said work has not been heard of as yet, still we doubt not that a person in a magnetic state might write very good music, even if totally ignorant of its rules, as this young lady was said to be. Phrenologists often tell persons that they would make excellent tailors, dressmakers, poets, painters, musicians, &c.--persons who never attempted to operate in these callings. "All they need," it is said, "is an opportunity for the development of their powers." Now, magnetism tends to develop or rouse these _dormant_ faculties into action. It also gives a far-reaching, a far-seeing grasp and perception of things, as in the case of Miss Martineau, who, be it remembered, was too intelligent to attribute such effects to the agency of spirits.