[54] Belfast Address, 1874.

[55] Lay Sermons. "On the Physical Basis of Life," p. 143.

[56] Professor Tait, Properties of Matter, § 108.

[57] Contemporary Review, January, 1878, p. 301.

[58] Story of Creation, p. 11.

[59] Edinburgh Review, October, 1903, p. 399.

[60] Or "primal stuff." This looks remarkably like the old Materia Prima of the Schoolmen translated into Greek.

[61] Ibid. The Revelations of Radium.

[62] Ibid., p. 398.

{Note.—It is often assumed that the composite character of the atom—if fully established—must upset the Atomic Theory. This is not so; all that the new hypothesis does is to go further back in accounting for the Atomic Theory, and for all practical purposes things remain exactly as they were; except, indeed, that the dissolution of matter does away with what was held as one of the most assured conclusions of science.}