Modern theories of matter—Outer world only known to us by our sensations—Instances—Mill's system only intermediary between self and outer world—The great X of Matter—Nervous syst specificity of the nerves—The nervous system itself a sensation—Relations of sensation with the unk CHAPTER III THE MECHANICAL THEORIES OF MATTER ARE ONLY SYMBOLS .Physicists vainly endeavour to reduce the rôle of sensation—Mathematical, energetical, and mechani from sensation—Instance of tuning-fork—No one sensation any right to hegemony over others CHAPTER IV ANSWERS TO SOME OBJECTIONS, AND SUMMARY Objections of spiritualists—Of German authors who contend that nervous system does give true objection that nervous system not intermediary—Answer to this—Summary of preceding chapters BOOK II THE DEFINITION.
