The characteristics of cities arise in this way, the general average of Thought of their inhabitants causing a corresponding Thought-atmosphere to hang over and around it, which atmosphere is distinctly felt by visitors, and often determines the mental character of the persons residing there, in spite of their previous characteristics--_that is, unless they understand the Laws of Thought_. Some neighborhoods, also, have their own peculiar Mental Atmosphere, as all may have noticed if they have visited certain "tough" neighborhoods, on the one hand, and neighborhoods of an opposite kind, on the other. Certain kinds of Thoughts and Actions seem to be contagious in certain places--_and they are_ to those who do not understand the Law. Certain shops seem to have their own atmosphere--some reflecting confidence and honest dealing, and others radiating an atmosphere that causes patrons to hold tightly to their pocketbooks, and, in some extreme cases, to be certain that their buttons are tightly sewed on their garments. Yes, places like people, have their distinctive Mental Atmospheres, and both arise from the same cause. And each person draws to himself these particles of vibrating "Thought-stuff" corresponding with the general mental attitude maintained by him. If one harbors feelings of Malice, he will find thoughts of malice, revenge, hate, etc., pouring in upon him. He has made himself a centre of Attraction, and has set the Law into operation. His only safe course is to resolutely change his thought vibrations. A most remarkable form of these particles of Thought-stuff is evidenced in the case of what are known among occultists as "Thought-forms," which are aggregations of Particles of Thought-stuff energized by intense and positive thought, and which are sent out with such intensity and positiveness, that they are almost "vitalized," and manifest almost the same degree of mental influence that would be manifested by the sender if he were present where they are. This highly interesting phase of the subject would take many chapters to describe in detail, and we must content ourselves with a mere passing view. To those who are interested in the subject, the writer would say that he purposes considering them at considerable length, in the forthcoming book "_The Wonders of The Mind_," which has been alluded to elsewhere.