NETS 254 CHAPTER XVIII. BUD IN SEARCH OF COMFORT 271 CHAPTER XIX. COMFORTED 287 CHAPTER XX. BUD AS A FORM OF PHYSICAL ENERGY. IV. VITALITY. V. MATTER AND FORCE. VI. SCIENTIFIC MATERIALISM. [Footnote: President's Address to the Art-Union of Philadelphia (12mo., pp. 749); carefully revised; various errors which have given.