"Repulsion in nature is caused by stronger attraction. The ascension of a balloon from the earth is a fair illustration of the principle of repulsion. Everything in the universe takes its appropriate place by virtue of its elemental affinities, and can occupy no other place, without changing the relations of itself and every other body in existence. The earth, as also every other heavenly body, is caused to move in its appropriate orbit by the united action of every other body in existence, and cannot be made to come in contact with other bodies; for the combining influences of all the separate bodies mark out separate paths for each. Thought is mental motion, and is conveyed from one mind to another through an intermediate medium, which is put in motion by this mental action. This medium, in its refinement lies between the nervous medium and Spirit, and exists in every degree of refinement from the nervous fluid to Spirit. "Clairvoyance consists in insulating the mind of the subject, and in proportion as the mind is brought into clear contact with higher refinements of this medium, will the subject become clear-sighted. Biology, as used by Burr and others, is an improper term. Psychology would be a better word. The word Biology was used to make the subject a humbug. The phenomena attending Psychological (Biological) experiments, belong to the lower class of mesmeric influences--and pass from them through every degree, to perfect clear-sightedness. "Much further information was given which we failed to note. As the doctor promised to meet the circle again, we hope to report a more complete theory. After which the circle drew up close to the table, and various rapping sounds were heard upon the chairs, the table, the floor, etc. The sound of sawing boards, driving nails into a box or something hollow, was repeated several times." CHAPTER XVIII. NEW YORK CITY, FROM JANUARY, 1852. COMPETING CLAIMS UPON US--DECISION IN FAVOR OF NEW YORK AS RESIDENCE--DEATH OF CALVIN R. BROWN--REMAINS REMOVED TO ROCHESTER FOR BURIAL--PERSONAL FRIENDSHIPS--ALICE AND PHOEBE CARY--COURSE OF TEST EXPERIMENTS AT DR. GRAY'S--THE MONDAY EVENING CIRCLE--RULES OF SÉANCES. I have sketched our experiences thus far at Rochester, Albany, Troy, New York, Buffalo, and Ohio generally; after which I returned to Albany and Troy, a second time, by the earnest entreaty of friends--taking Glens Falls on the way, where I remained with my uncle John and Calvin; my mother and the girls being at that time in Cincinnati for the second time. A fortnight after this I returned to my pleasant home in Rochester (corner of Troup and Sophia Streets). I now considered that we were fairly entitled to repose; and thought that, after the publicity given to the Spirit manifestations, through the press, and the thousands of our visitors, including persons from all parts of the Union, the _duty_ imposed on us had been reasonably and, as I deemed, sufficiently discharged.