The following conclusions are the result of our common considerations of the above facts, and their deductions:-1. That a congenital predisposition to diseases of the nervous system may have existed in Mr. X.2. That a determining cause (the fall on the head) produced insanity in Mr. X., which disease was a gradually progressing weakness of mind, associated with lypemania. Among the physical symptoms in such cases, remittent congestions to the head are prominent.3. That in consequence of his form of mental disease, which has no possible lucid intervals, the late Mr. X., on account of his limited sphere of intellectual power, and especially by weakness of reason and volition, was unable to make spontaneously a testament or will, or sign such act of civil life with knowledge of its value.4. That Mr. X's mental prostration or intellectual obscurity precluding the possibility of the necessary determination and understanding for signing a will, presupposes his submission to undue influence.